Single-walled polyester storage tank for the retention of water of density 1. Our pits are buried in stabilized, nonhydromorphic, non-floodable and ground water-free soil. Each pit is equipped with a polyethylene screw cap. Ventilation...

These polyester belts are used to fasten the units to a reinforced concrete ballast slab in case of ground water. Supplied with a winch system which, once it has been spun in the concrete slab, allows the straps to be easily tensioned.