I have a 20 year old gunite pool/spa with new 1.5HP Whisperflo pump, 48ft2 DE filter, heater and 5 port caretaker system. The only returns are through the caretaker system and spa lines. All above ground plumbing is 2", but underground, I think it is all 1.5". There are 2 skimmers. Normal pressure for filter isabout 28psi and caretaker about 18; from the filter curves, I think I am running at about 70GPM. Pool-spa is automated through Jandy PDA system.
I want to add 4 deckjets and am curious where to plumb them in. I assume somewhere after the pool/spa return valve on the pool returns, but before the caretaker. My concern is that if I divert some water to the deckjets, will the varying backpressure operation of the caretaker cause the jets to bounce around a bit?
1)Can I simply "T" off the pool return before the caretaker? Will I get enough flo to the deckjets? Will the caretaker operation disrupt the jets
2)Alternatively, I can put a 3 way to divert an adjustable amount of water to the jets - same issue with caretaker.
3)Most complex, I could use a 3 way (automated) to divert all water towards the jets, with another three way to bypass some of that diverted flow back towards one of the caretaker returns through a check valve; this would effective bypass the caretaker valve, but is the more complex plumbing.
Any thoughts? Am I overthinking this?