Special precautionary measures must be taken in flood-prone areas. Tanks for supplying the heating system, for example, must be secured against floating. Just holding the heating oil tank on the floor is not enough. It must also be so stable that it can withstand the enormous water pressure that acts on the flooded tank.
The double-walled Haase basement tanks with buoyancy protection are approved by the German Institute for Building Technology (DIBt) for flooding heights of up to 1.70 m above the tank lid.
The on-site installation ensures that even difficult spatial access and space conditions are not a problem.
A buoyancy-proof Haase basement tank with a volume of 5,000 liters, a diameter of 1.92 m and a height of 1.85 m. 
The reinforced and absolutely odor-proof manhole cover of the Haase basement tank 
The on-site assembled Haase basement tank with buoyancy control is firmly anchored in the ground. 
In the Haase underground tank, buoyancy protection is achieved by a defined amount of concrete that is applied in the shoulder area of the tank.
Double-walled underground tanks from Haase have been proving themselves for over 35 years. Like the basement tanks, they are equipped with an automatic leak detection system and monitor themselves around the clock.
The high-quality material GRP guarantees dimensional stability, aging resistance and 100% freedom from corrosion. The high level of safety and proven technology allow double-walled Haase underground tanks to be stored even in flood-prone areas and when the groundwater level is high.
In these cases, the tank is simply provided with an inexpensive type of buoyancy protection.
Do you have any questions on this topic, would you like a specific offer or a free and non-binding on-site appointment with a Haase partner from your region? Please use our contact form.