Okay...here we go. I have a in-ground pool, spa, waterfall/overflow. The pool and spa are at the same level. The waterfall/overflow is raised above that level.
Pump/filter A has skimmer, main drain, and vacuum suction as well as pool return.
Pump /filter B has spa, fountain-overflow suction and returns.
However, filter A also has a return line connected with the fountain-overflow return over by pump B. There is a shut off valve in that line halfway between the two systems.
If I shut off the return from pump A to the fountain-overflow return, I can run either system with no problem either at the same time or not. If I open that return valve though, and do not have pump B running, then the spa will overflow onto the deck and the fountain-return will operate with only an increased amount of water coming out of the return pipes. Makes sense as there is no suction going on, only returning water.
My question is this. Why would you connect only a return line from filter A to the fountain-overflow on a separate system? The only way you can have water returning to that without the spa overflowing is if both systems are running at the exact same time. If that is the case then why connect them to begin with? Just run both timers for both systems at the same time. Or am I missing something here?
Thx Mike
Pump/filter A has skimmer, main drain, and vacuum suction as well as pool return.
Pump /filter B has spa, fountain-overflow suction and returns.
However, filter A also has a return line connected with the fountain-overflow return over by pump B. There is a shut off valve in that line halfway between the two systems.
If I shut off the return from pump A to the fountain-overflow return, I can run either system with no problem either at the same time or not. If I open that return valve though, and do not have pump B running, then the spa will overflow onto the deck and the fountain-return will operate with only an increased amount of water coming out of the return pipes. Makes sense as there is no suction going on, only returning water.
My question is this. Why would you connect only a return line from filter A to the fountain-overflow on a separate system? The only way you can have water returning to that without the spa overflowing is if both systems are running at the exact same time. If that is the case then why connect them to begin with? Just run both timers for both systems at the same time. Or am I missing something here?
Thx Mike