First off - Thanks for this forum. Has helped tremendously.
Have a pool/spa that has seen many years of neglect. Looking to rehab a bit, but am tight on budget as the rest of the house is messed up as well.
The Pool and the Spa are physically separate. The Spa is elevated about 4'
Currently plumbing setup at pad is painfully simple. Single Pool Suction Pipe, Single Spa Suction - with a Jandy 3 way to 1 Pump. Single Pool Return and Single Spa Return - with a Jandy 3 way.
I'm looking for a simple(ish) way to get some circulation between the spa and the pool to help with chemicals, etc. Obviously my issue is I constantly lose water from the spa to the pool when I attempt to circulate.
If I were to install a spa bypass line on both the return side and the suction side with the appropriate check valves I could theoretically adjust the flow of the bypass lines to maintain level in the spa and get come circulation and not lose level when the system is shut off.
I can't find any examples of a suction side bypass line which makes me think it's uncommon/incorrect. 1 concern I have is debris in the suction side pool check valve sticking it open - causing the spa to drain when the system shuts off and then suck air the next day when everyone is gone.