Gas Stations
Revision at filling stations
Clean tanks and shafts ensure quality and operation. Many filling stations are over 30 years old. The challenge: new fuels contain bio-components (ethanol, bio-diesel). Water (condensation water) mixes immediately with these substances – the only exception is “Bleifrei 98”.
These factors impair operational safety:
- Leaks after construction or surfacing work
- Obsolete or defective manhole covers
- Water ingress in the spaces between the shafts
- Defective cable bushings
- Corrosion on pipes and screw connections
- Missing/defective access covers (filling/measuring rod lines)
The problem areas are not just in the tank: shafts, covers and their inner workings are the critical interfaces.
Those who invest strategically in this infrastructure now will secure their market lead. Neglect leads to escalating costs that exceed preventive maintenance costs many times over.
A tank overhaul with internal cleaning is necessary every ten years (exception: possibly lead-free 98).
Cause: Temperature fluctuations form condensation and particles that form sludge (electrolyte) at the bottom. This aggressive sludge is a galvanic element that causes corrosion in the tank. In the case of diesel, the sludge can develop into a fungus-like substance that clogs filters in vehicles.
Additional risk of manholes: Moisture in combination with gasoline gases leads to considerable corrosion in manholes and covers.
Scope of services: The inspection also includes the testing of safety equipment (filling safety device, vapor recovery valves) and official notification.
Workflow:
Do you have any questions or would you like a personal consultation? Contact us – together we will find the best solution for you.
Refurbishment
Necessary refurbishment cases:
Remediation of underground tanks in the event of a leak alarm: A leak alarm in the double-walled underground tank (standard) usually means corrosion damage. This is caused by water ingress in the shaft or ageing of the outer wall. Damage inside the tank is rare.
Our solutions:
- Shaft damage: Corrosion in the shaft is often repaired by welding, which requires the tank to be shut down.
- Shell damage: We repair defects in the inner or outer shell with an upgrade: coating, tank-in-tank system or an inner tank shell.
Do you have any questions or would you like a personal consultation? Contact us now – together we will find the best solution for you.
New tank system
Do you have any questions or would you like a personal consultation? Contact us – together we will find the best solution for you.
Decommissioning
Petrol tanks: professional deactivation
Gasoline tanks must be deactivated by qualified personnel as there is a risk of explosion.
Our approach:
- Controlled flaring of residual gases
- Removal of residual oil and sludge
- Flushing the product lines
- Disposal of the antifreeze (for double-walled systems).
- Safe blanking of the filler neck
- Official deregistration with authorities
Do you have any questions or would you like a personal consultation? Contact us now – together we will find the best solution for you.
Frequently asked questions
When Do I Have to Arrange for an Internal Cleaning?
We recommend cleaning the inside every ten years.
Where can I find the date of the last revision?
The date of the last work can be found on the sticker on the tank compartment door.
Do I have to expect higher costs for an inspection in winter?
No. We create a temporary heating system free of charge.
What is the maximum number of liters that can be removed without additional costs?
We can temporarily store a maximum of 15,000 liters of oil for you.
Please give us as much information as possible about your heating oil stock. This is the only way we can plan the right tank trailer for temporary storage. The easiest way to determine the current oil level is directly with the dipstick.