{"id":9746,"date":"2025-02-12T13:01:40","date_gmt":"2025-02-12T12:01:40","guid":{"rendered":"https:\/\/forsterag.net\/frequently-asked-questions\/"},"modified":"2026-01-30T17:40:04","modified_gmt":"2026-01-30T16:40:04","slug":"frequently-asked-questions","status":"publish","type":"page","link":"https:\/\/forsterag.net\/en\/frequently-asked-questions\/","title":{"rendered":"Frequently asked questions"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"9746\" class=\"elementor elementor-9746 elementor-3537\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6603ed82 e-flex e-con-boxed e-con e-parent\" data-id=\"6603ed82\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-459e1ffa elementor-widget elementor-widget-heading\" data-id=\"459e1ffa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Frequently asked questions<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5f3a743a pad-tb-l e-flex e-con-boxed e-con e-parent\" data-id=\"5f3a743a\" data-element_type=\"container\" data-e-type=\"container\" id=\"neutankanlagen\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-2d8d38a5 e-con-full e-flex e-con e-child\" data-id=\"2d8d38a5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d086053 elementor-widget__width-inherit elementor-widget elementor-widget-search\" data-id=\"d086053\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;submit_trigger&quot;:&quot;click_submit&quot;,&quot;pagination_type_options&quot;:&quot;none&quot;}\" data-widget_type=\"search.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<search class=\"e-search hidden\" role=\"search\">\n\t\t\t<form class=\"e-search-form\" action=\"https:\/\/forsterag.net\/en\/\" method=\"get\">\n\n\t\t\t\t\n\t\t\t\t<label class=\"e-search-label\" for=\"search-d086053\">\n\t\t\t\t\t<span class=\"elementor-screen-only\">\n\t\t\t\t\t\tSearch\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/label>\n\n\t\t\t\t<div class=\"e-search-input-wrapper\">\n\t\t\t\t\t<input id=\"search-d086053\" placeholder=\"Search ...\" class=\"e-search-input\" type=\"search\" name=\"s\" value=\"\" autocomplete=\"on\" role=\"combobox\" aria-autocomplete=\"list\" aria-expanded=\"false\" aria-controls=\"results-d086053\" aria-haspopup=\"listbox\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<output id=\"results-d086053\" class=\"e-search-results-container hide-loader\" aria-live=\"polite\" aria-atomic=\"true\" aria-label=\"Results for search\" tabindex=\"0\">\n\t\t\t\t\t\t<div class=\"e-search-results\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/output>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<button class=\"e-search-submit  \" type=\"submit\" aria-label=\"Search\">\n\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-search\"><\/i>\n\t\t\t\t\t\t\t\t\t<\/button>\n\t\t\t\t<input type=\"hidden\" name=\"e_search_props\" value=\"d086053-9746\">\n\t\t\t<\/form>\n\t\t<\/search>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ee02fe7 pad-tb-m elementor-widget elementor-widget-heading\" data-id=\"ee02fe7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">to heating oil tanks<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c0cb20 elementor-widget__width-inherit elementor-widget elementor-widget-shortcode\" data-id=\"7c0cb20\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><div class=\"ogf-accordion elementor-widget-n-accordion\"><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">How do we clean a rainwater tank?<\/summary><div class=\"ogf-accordion__panel\">\n<p>The tank is opened, emptied and the residues are completely removed.<\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">How is the water extracted from the rainwater tank?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Usually by a pump, as the tank is usually lower than the tapping points.<\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Does rainwater need to be filtered?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Yes, the rainwater is filtered as soon as it enters the tank.  <strong>Attention: Rainwater is not drinking water!<\/strong><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Is excavation necessary for an underground rainwater tank?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Yes, for a new tank. No excavation is necessary when converting an existing tank. <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">How costly is the maintenance of a rainwater tank?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Rain washes the air, which brings fine particles (soot) into the tank. We recommend pumping out and cleaning the tank at regular intervals. <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Which rainwater tanks are available?<\/summary><div class=\"ogf-accordion__panel\">\n<p><a href=\"https:\/\/forsterag.net\/en\/rainwater\/#neuanlage\">Information can be found in the corresponding section of this website.<\/a><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">How can a heating oil tank be converted into a rainwater tank?<\/summary><div class=\"ogf-accordion__panel\">\n<p><a href=\"https:\/\/forsterag.net\/en\/rainwater\/#tank%E2%80%93umbau\">Information can be found in the corresponding section of this website.<\/a><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">How is a heating oil tank installed? What new build options are there?<\/summary><div class=\"ogf-accordion__panel\">\n<p><a href=\"https:\/\/forsterag.net\/en\/heating-oil\/#neuanlage\">Information can be found in the corresponding section of this website.<\/a><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">What is a leakage warning device and how is it tested?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Take a look at our <a href=\"https:\/\/www.youtube.com\/watch?v=uzm7HCz684E\" target=\"_blank\" rel=\"noreferrer noopener\">video<\/a> on the subject of leak detectors.<\/p>\n\n<p>Link: <a href=\"https:\/\/forsterag.net\/en\/service-and-accessories\/#leckwarnger%C3%A4te\">https:\/\/forsterag.net\/service-und-zubehoer\/#leckwarnger%C3%A4te<\/a><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">How is a tank dismantled?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Watch the <a href=\"https:\/\/www.youtube.com\/watch?v=g9RKdQyFpfo\" target=\"_blank\" rel=\"noreferrer noopener\">video<\/a> on the subject of tank dismantling.<\/p>\n\n<p>Link: <a href=\"https:\/\/forsterag.net\/en\/heating-oil\/#demontage\">https:\/\/forsterag.net\/heizoel\/#demontage<\/a><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">What are the benefits of heating oil filtration?<\/summary><div class=\"ogf-accordion__panel\">\n<p>The special filtration removes the smallest dirt particles. This prevents burner failures\/damage caused by contaminated oil. Filtration is usually used during tank shutdowns.  <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Tank coating: What are the benefits and how is it applied?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Watch the <a href=\"https:\/\/www.youtube.com\/watch?v=OcFCO2PywOA\" target=\"_blank\" rel=\"noreferrer noopener\">video<\/a> on the subject of tank coating. Link: <a href=\"https:\/\/forsterag.net\/en\/heating-oil\/refurbishment\/#beschichtung\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/forsterag.net\/sanierung\/#beschichtung<\/a> <\/p>\n\n<p><strong><strong>How is a manhole cover replaced? What options are available? <\/strong><\/strong><br\/>Take a look at the videos on the subject of manhole covers.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.youtube.com\/watch?v=8yNyWShWwYg\" target=\"_blank\" rel=\"noreferrer noopener\">100\/125cm manhole cover \/ manhole cover<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.youtube.com\/watch?v=ntiwSIgvBMU\" target=\"_blank\" rel=\"noreferrer noopener\">80cm manhole cover \/ manhole cover<\/a><\/li>\n<\/ul>\n\n<p>Link: <a href=\"https:\/\/forsterag.net\/en\/heating-oil\/refurbishment\/#schachtdeckel\">https:\/\/forsterag.net\/sanierung\/#schachtdeckel<\/a><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">What should I do if the tank compartment has been inspected?<\/summary><div class=\"ogf-accordion__panel\">\n<p>A complaint means: The collection tray (tank compartment) has cracks or damage. According to the law, the compartment must be watertight. We carry out a water test to definitively determine the tightness. We are happy to support you.   <\/p>\n\n<p>You can find more information here: <a href=\"https:\/\/forsterag.net\/en\/heating-oil\/refurbishment\/#tankraumsanierung\">https:\/\/forsterag.net\/sanierung\/#tankraumsanierung<\/a><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">How do you renovate buried tanks?<\/summary><div class=\"ogf-accordion__panel\">\n<p>A dimensionally accurate inner shell is used for this purpose. A permanent vacuum is created between the tank wall and the inner shell. This vacuum continuously checks both walls for leaks.  <\/p>\n\n<p>Link: <a href=\"https:\/\/forsterag.net\/en\/heating-oil\/#sanierung\">https:\/\/forsterag.net\/heizoel\/#sanierung<\/a><\/p>\n\n<p><a href=\"https:\/\/forsterag.net\/wp-content\/uploads\/2025\/10\/190923130844_3_Vollzugsblatt_3_Ueberwachung_der_Kontrollpflicht_bei_Lageranlagen.pdf\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/forsterag.net\/wp-content\/themes\/hello-theme-child-master\/images\/pdf-i-g.svg\" alt=\"PDF\" style=\"width:30px; height:34px; margin-right:4px; vertical-align:middle;\"> <img decoding=\"async\" src=\"https:\/\/forsterag.net\/wp-content\/themes\/hello-theme-child-master\/images\/pdf-i-g.svg\" alt=\"PDF\" style=\"width:30px; height:34px; margin-right:4px; vertical-align:middle;\">  190923132311_Merkblatt_E1_September_2019.pdf<\/a><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">When is a tank refurbishment necessary?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Defective systems must not be filled &#8211; defects must be rectified. The main causes are Corrosion damage in old double-walled underground tanks, ageing inner tank shells and small tanks\/plastic tanks that lose stability with age. <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">What is the difference between filling and overfill protection?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Both stop the filling process automatically when the tank is full. Filling safety devices are modern, electro-optical probes. Overfill prevention devices (mechanical) are a more rudimentary variant that is used when there is no electricity or in older properties.  <\/p>\n\n<p>Link<strong>:<\/strong> <a href=\"https:\/\/forsterag.net\/en\/service-and-accessories\/#abf%C3%BCllsicherungen\">https:\/\/forsterag.net\/service-und-zubehoer\/#abf%C3%BCllsicherungen<\/a><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">What is a burst safety device?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Watch the <a href=\"https:\/\/www.youtube.com\/watch?v=jozakCRVNrs\" target=\"_blank\" rel=\"noreferrer noopener\">video<\/a> on the subject of burst protection.<\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">What additional costs are incurred for a tank overhaul?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Any costs for material replacement and repairs may be incurred by agreement between the customer and the tank inspector.<\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">What is included in the price of a tank overhaul?<\/summary><div class=\"ogf-accordion__panel\">\n<p>The following services are included in the price:  <\/p>\n\n<ul class=\"wp-block-list\">\n<li>Approach<\/li>\n\n\n\n<li>Set up your workstation<\/li>\n\n\n\n<li>Construction of a temporary heating system (heating\/boiler remain in operation)<\/li>\n\n\n\n<li>Pumping and temporary storage of oil up to a certain quantity<\/li>\n\n\n\n<li>Removal and disposal of sludge<\/li>\n\n\n\n<li>Cleaning and meticulous inspection of the tank for corrosion<\/li>\n\n\n\n<li>Checking the drip tray and fittings<\/li>\n\n\n\n<li>Audit report and notification to the authorities<\/li>\n<\/ul>\n\n<p>Not included: Material replacement and repairs.<\/p>\n\n<ul class=\"wp-block-list\"><\/ul>\n\n<p><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Does the tank have to be empty for the inspection? What is the maximum amount of residual oil possible?<\/summary><div class=\"ogf-accordion__panel\">\n<p>We temporarily store up to a certain amount of oil in our trailers. This quantity is pumped out at no extra cost, filtered if required and then refilled. <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Do parking spaces have to be blocked off for the tank inspection?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Normally, we require two parking spaces near the filler neck. If you are using public land, please inform us urgently so that we can apply for permits. <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">I have received a summons &#8211; what do I have to do now?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Transfer the responsibility to a specialist company. The inspection (with interior cleaning) fulfills your duty of care and maintains your insurance cover. <br\/><strong>Link:<\/strong> <a href=\"https:\/\/forsterag.net\/en\/heating-oil\/#revision\">https:\/\/forsterag.net\/heizoel\/#revision<\/a><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">What does my duty of care entail?<\/summary><div class=\"ogf-accordion__panel\">\n<p>According to Article 3 of the Water Protection Act, you as the owner of the system must regularly check the system for defects and leaks and rectify any defects immediately. An inspection with internal cleaning by a specialist at regular intervals fulfills this obligation. <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">How often does a tank inspection have to be carried out?<\/summary><div class=\"ogf-accordion__panel\">\n<p>We generally recommend tank inspection with internal cleaning at regular intervals.<br\/>Link: <a href=\"https:\/\/forsterag.net\/en\/heating-oil\/#revision\">https:\/\/forsterag.net\/heizoel\/#revision<\/a><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Is a tank inspection mandatory?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Yes, it is required by law for properties in groundwater zones S\/A\/Z. For all other installations, inspection at regular intervals is recommended (personal responsibility). <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">What are the benefits of a tank overhaul?<\/summary><div class=\"ogf-accordion__panel\">\n<p>The inspection with internal cleaning increases the operational reliability of your system and helps to maintain the value of your heating system.<strong><br\/><\/strong>Link<strong>: <\/strong><a href=\"https:\/\/forsterag.net\/en\/heating-oil\/#revision\">https:\/\/forsterag.net\/heizoel\/#revision<\/a><\/p>\n\n<p><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Where can I get information about my heating oil tank?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Contact the responsible cantonal office. See <a href=\"https:\/\/www.kvu.ch\/de\/adressen\" target=\"_blank\" rel=\"noreferrer noopener\">the list of cantonal offices for environmental protection in Switzerland<\/a>. We will be happy to carry out clarifications on your behalf (except for the canton of BE).  <\/p>\n\n<p><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">What is the maximum amount of oil that can be removed without additional costs?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Maximum 15,000 liters. Precise information on the stock is important. It is best to measure the oil level with the dipstick. <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">We have commissioned you with the revision. When will you inform us of the date?<\/summary><div class=\"ogf-accordion__panel\">\n<p>You primarily determine the time. We plan at least one week before the appointment (by phone or email). <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Replace underground tank with small tank system: What to do?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Check both options: Renovation of the underground tank and new construction of a small tank system. We will be happy to offer you both options. <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Can I place a new oil tank in the garage or in the shelter?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Heating oil must be stored in a dark place with low temperature fluctuations. It is essential that you commission a specialist company for the installation. <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">What options do I have when deactivating the heating oil tank?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Decommissioning, decommissioning incl. dismantling or for underground tanks: conversion to rainwater tank <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Does the small tank (plastic tank) also have to be decommissioned by a specialist company?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Yes, every officially approved tank must be decommissioned by a specialist company, regardless of its size. You can find the legal basis here: <a href=\"https:\/\/forsterag.net\/de-ch\/Heizoel\/Tankrevision\/Gesetzliche-Grundlagen\">https:\/\/forsterag.net\/de-ch\/Heizoel\/Tankrevision\/Gesetzliche-Grundlage<\/a>  <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Is an inspection possible in winter? Does the heating fail?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Yes, the revision is also possible in winter. We create a temporary heating system at no extra cost. <\/p>\n\n<p><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">When is an interior cleaning due?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Heating oil is an organic product and therefore ages naturally. Temperature fluctuations generate condensation, which combines with oil sediments and the bio-oil components of modern heating oils. <\/p>\n\n<p>This aggressive sludge collects at the bottom of the tank and causes corrosion. In rare cases, it can enter the heating burner via the product line. <\/p>\n\n<p>Your safety guarantee: With an internal tank cleaning, we guarantee you 10 years of protection against rusting through of the tank. Oil sludge and condensation are completely removed. The result: your heating system will work more reliably for years to come.  <\/p>\n<\/div><\/details><\/div><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9145dee pad-tb-m elementor-widget elementor-widget-heading\" data-id=\"9145dee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">to diesel oil tanks<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c4eed9 elementor-widget__width-inherit elementor-widget elementor-widget-shortcode\" data-id=\"7c4eed9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><div class=\"ogf-accordion elementor-widget-n-accordion\"><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Can I install diesel tanks (small tanks) in the garage or in the shelter?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Yes &#8211; but the most important thing is that you are aware in advance that the &#8220;small filling station&#8221; is accessible in such a way that the vehicle to be refueled can be refueled in a tight space. There are clear regulations for this. <\/p>\n\n<figure class=\"wp-block-embed\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/forsterag.net\/wp-content\/uploads\/2025\/10\/2011_Dieseloelbetankunsanlage_Schemenblatt_D1.pdf\n<\/div><\/figure>\n\n<p>Diesel oil should also be stored in a dark place with the lowest possible temperature fluctuations. The installation of such a system requires a permit. As a specialist company, we are happy to support you.  <\/p>\n\n<p><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Why is a tank overhaul with internal cleaning advisable?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Heating oil ages naturally. Temperature fluctuations form condensation, which combines with sediments and the bio-oil components of modern heating oils. This aggressive sludge collects at the bottom and leads to corrosion in the tank. Internal cleaning removes sludge\/condensation. We guarantee protection against rusting through. Result: A more reliable heating system.     <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">The deadline has passed &#8211; why have I not received a notice of inspection from the Water Protection Office?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Since 1.1.2007, the Water Protection Office no longer sends out direct requests for installations in water protection zone B. The request is only made officially. The responsibility and liability lies entirely with the system owner. We continue to recommend inspection with internal cleaning at regular intervals to ensure operational safety and value retention. Longer intervals may reduce the insurance cover.   <\/p>\n<\/div><\/details><\/div><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db30c49 pad-tb-m elementor-widget elementor-widget-heading\" data-id=\"db30c49\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">to gasoline tank systems<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8f47020 elementor-widget__width-inherit elementor-widget elementor-widget-shortcode\" data-id=\"8f47020\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><div class=\"ogf-accordion elementor-widget-n-accordion\"><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">By when did the flame arrester have to be installed?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Until 2017, see SUVA leaflet 1 and leaflet 2.<\/p>\n\n<p><\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Are service station inspections also possible at night?<\/summary><div class=\"ogf-accordion__panel\">\n<p>In the case of heavily frequented filling stations or difficult space conditions, we are also happy to offer inspections at night.<\/p>\n<\/div><\/details><\/div><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c2efb0 pad-tb-m elementor-widget elementor-widget-heading\" data-id=\"1c2efb0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">to rainwater tanks<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-010ce25 elementor-widget__width-inherit elementor-widget elementor-widget-shortcode\" data-id=\"010ce25\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><div class=\"ogf-accordion elementor-widget-n-accordion\"><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">Where should the rainwater tank be installed?<\/summary><div class=\"ogf-accordion__panel\">\n<p>Installation in the building, e.g. in the basement, always involves a certain risk. Although leaks can also occur in underground tanks, the effects are much less problematic underground. <\/p>\n<\/div><\/details><details class=\"ogf-accordion__item\"><summary class=\"ogf-accordion__summary\">What is the optimum size for a rainwater tank?<\/summary><div class=\"ogf-accordion__panel\">\n<p>The size depends on your needs (garden watering, toilet flushing, washing machine). Tanks of a certain size are advisable &#8211; or larger, depending on use. <\/p>\n\n<p><\/p>\n<\/div><\/details><\/div><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4be70c44 e-flex e-con-boxed e-con e-parent\" data-id=\"4be70c44\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-28c32151 pad-tb-l e-flex e-con-boxed e-con e-parent\" data-id=\"28c32151\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-33d7cad6 e-con-full e-flex e-con e-child\" data-id=\"33d7cad6\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-35d20cd7 elementor-widget elementor-widget-image\" data-id=\"35d20cd7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"684\" height=\"800\" src=\"https:\/\/forsterag.net\/wp-content\/uploads\/2023\/02\/wasner-tankrevisionen-uetendorf-.jpg\" class=\"attachment-large size-large wp-image-6988\" alt=\"\" srcset=\"https:\/\/forsterag.net\/wp-content\/uploads\/2023\/02\/wasner-tankrevisionen-uetendorf-.jpg 684w, https:\/\/forsterag.net\/wp-content\/uploads\/2023\/02\/wasner-tankrevisionen-uetendorf--257x300.jpg 257w\" sizes=\"(max-width: 684px) 100vw, 684px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4ac41d66 e-con-full e-flex e-con e-child\" data-id=\"4ac41d66\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6704d05a pad-b-s elementor-widget elementor-widget-heading\" data-id=\"6704d05a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Hello, I'm Mrs. W\u00e4lti!<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-49108e8 pad-b-s elementor-widget elementor-widget-text-editor\" data-id=\"49108e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span data-slate-fragment=\"JTVCJTdCJTIydHlwZSUyMiUzQSUyMnAlMjIlMkMlMjJjaGlsZHJlbiUyMiUzQSU1QiU3QiUyMnRleHQlMjIlM0ElMjJXaXIlMjBmaW5kZW4lMjBkaWUlMjBiZXN0bSVDMyVCNmdsaWNoZSUyMEwlQzMlQjZzdW5nJTIwZiVDMyVCQ3IlMjBTaWUlMjAtJTIwamV0enQlMjBhbnJ1ZmVuISUyMCUyMiU3RCU1RCUyQyUyMmlkJTIyJTNBJTIyNTUyZG0lMjIlN0QlNUQ=\">We will find the best possible solution for you!<br>Call now!  <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-109f9458 pad-b-s elementor-widget elementor-widget-button\" data-id=\"109f9458\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"tel:0319314561\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">031 931 45 61<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-48dcebee pad-b-s elementor-widget elementor-widget-button\" data-id=\"48dcebee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"mailto:info@forsterag.net\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">info@forsterag.net<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4290b7a0 pad-tb-m e-flex e-con-boxed e-con e-parent\" data-id=\"4290b7a0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-60c31dea elementor-widget__width-inherit pad-t-m elementor-widget elementor-widget-heading\" data-id=\"60c31dea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">This could also be of interest to you:<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-760c59d2 elementor-widget-mobile__width-initial elementor-widget-tablet__width-inherit pad-tb-s elementor-widget elementor-widget-shortcode\" data-id=\"760c59d2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t<div data-elementor-type=\"container\" data-elementor-id=\"7136\" class=\"elementor elementor-7136 elementor-2184 elementor-2184\" data-elementor-post-type=\"elementor_library\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ae0798c e-con-full e-flex e-con e-child\" data-id=\"ae0798c\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-39e038f elementor-widget elementor-widget-heading\" data-id=\"39e038f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/forsterag.net\/en\/rainwater\/\">Rainwater<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5650a6 elementor-widget elementor-widget-heading\" data-id=\"a5650a6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/forsterag.net\/en\/rainwater\/#new-tank-system\">New Rainwater tank system<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab82626 elementor-widget elementor-widget-heading\" data-id=\"ab82626\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/forsterag.net\/en\/rainwater\/#accessories\">Rainwater Accessories<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-508348b elementor-widget elementor-widget-heading\" data-id=\"508348b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/forsterag.net\/en\/rainwater\/#conversion\">Rainwater Harvesting System Conversion<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a1f816b elementor-widget elementor-widget-heading\" data-id=\"a1f816b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/forsterag.net\/en\/gas-stations\/#revision\">Filling Station Tank Inspection<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-402aa56 elementor-widget elementor-widget-heading\" data-id=\"402aa56\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/forsterag.net\/en\/gas-stations\/#decommissioning\">Filling Station Tank Remediation<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e1575e0 elementor-widget elementor-widget-heading\" data-id=\"e1575e0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/forsterag.net\/en\/rainwater\/#advantages\">Why Harvest Rainwater?<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7e58a7b elementor-widget elementor-widget-heading\" data-id=\"7e58a7b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"http:\/\/forsterag.net\/en\/service-and-accessories\/#overfill-prevention-devices\">Overfill Prevention Devices<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-acc7fa6 elementor-widget elementor-widget-heading\" data-id=\"acc7fa6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/forsterag.net\/en\/service-and-accessories\/#overfill-prevention-devices\">Leak Detection Devices<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8985e4b elementor-widget elementor-widget-heading\" data-id=\"8985e4b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/forsterag.net\/en\/gas-stations\/\">Gas Stations<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ae1783 elementor-widget elementor-widget-heading\" data-id=\"3ae1783\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/forsterag.net\/en\/service-and-accessories\/#level-indicators\">Level Indicators<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Frequently asked questions Suche to heating oil tanks to diesel oil tanks to gasoline tank systems to rainwater tanks Hello, I&#8217;m Mrs. W\u00e4lti! We will find the best possible solution for you!Call now! 031 931 45 61 info@forsterag.net This could also be of interest to you:<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":0,"menu_order":58,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-9746","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/forsterag.net\/en\/wp-json\/wp\/v2\/pages\/9746","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forsterag.net\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/forsterag.net\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/forsterag.net\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/forsterag.net\/en\/wp-json\/wp\/v2\/comments?post=9746"}],"version-history":[{"count":2,"href":"https:\/\/forsterag.net\/en\/wp-json\/wp\/v2\/pages\/9746\/revisions"}],"predecessor-version":[{"id":9748,"href":"https:\/\/forsterag.net\/en\/wp-json\/wp\/v2\/pages\/9746\/revisions\/9748"}],"wp:attachment":[{"href":"https:\/\/forsterag.net\/en\/wp-json\/wp\/v2\/media?parent=9746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}