Whirlpool system to save piping and ensure removal of water from pump - has non-return valve system in place of supply pipes and emptying of remaining water controlled by volume dependent non-return valve

摘要

The whirlpool system is installed in a bath (6) and has nozzles (8) in the walls of the bath. There is a suction connection (5) to the water pump (3) on the drain hole (9) of the bath. This has a water emptying connection (11) at its lowest point. There is a volume dependent flow restrictor (2) on this connection, with its fall inclined to the bath waste outlet (10). The pressurised water pipe (12) has its fall inclined to the pressure connection (4) of the pump and its end is connected to the whirlpool nozzles each of which is equipped with a non-return valve. The air supply system is replaced by the non-return valve system and the emptying of the remaining water is controlled by a volume dependent non-return valve.