Description
If you have a hot tub equipped with a bubble system and you intend to use it in the winter then the hose and air jets have to be protected from freezing. When the air blower isn’t operating but there is still water in the hot tub then the hose will fill with water all the way up to the check valve.
REMEMBER to start the air blower after 15 minutes maximum, so that the water in the hose does not have time to freeze. When the hot tub is drained of water the water in the hose can be removed by starting the air blower. Let the water drain from the hot tub and repeat the procedure atleast three times.
It is also possible to “close” the air jets so that water cannot enter the hose. Place a plastic plug on the valve cover and an o-ring between the valve housing and cover, as the left picture shows. When you do this you must not start the air blower. Put the cover back on and tighten it. Now water can’t enter the hose. O-rings and plugs can be ordered from us.