For preventive fire protection, the provision of sufficient extinguishing water is required by law. Fire water tanks are underground tanks with one or more extinguishing water suction connections. The tanks are made similar to DIN 6608. Outside with factory-tested polyurethane coating according to DIN 6607 and inside with full plastic lining protected against corrosion. They ensure the supply of fire water and can be supplied with rainwater and / or mains water. In addition to DIN 14230, DIN EN 1717 and the relevant regulations must be observed.
The tank can also be used as a retention tank. Various suction connections according to DIN 14244 are available. The overflow protection and the lower connecting piece are coordinated according to requirements.