When system turns off the spa drains. (spa is above pool)
Spa does not drain completley, there are 4 holes/passages around bottom about 1foot up where the water level stays, till system starts again.
Whould there be any reason for previous home owner to remove check valve door as it dosent look broken just missing + dont think door could fit thru pipe if it got loose.
I dont want to blow up filter or something, but would replacing check valve door stop draining of spa correctly?
Thanks for help and happy new year!
Can you see video, or is it white with only audio????
@ 32 second mark