Many have asked for the possibility to keep the water in the hot tub whilst being able to empy the heater due to the risk of freezing. Now there is a simple solution for this that consists of a rubber plug with accompanying equipment, the rubber plug is attached to a band that you hang over the edge of the tub. The plugs are placed in the wall and floor fittings. You will need to remove the "water distributor" from the upper wall fitting as well as the lid from the floor fitting in order to insert the plugs. The heater and pipes can then be drained and the water remains in the hot tub. Remove plugs before resuming use of the heater.