You should have valves to kill both the pool suction and the returns to the pool, so that you can run just the spa. It sounds like a return to the pool is still open when you are trying to run just the spa.
Re: Best way to heat attached spa
You should have valves to kill both the pool suction and the returns to the pool, so that you can run just the spa. It sounds like a return to the pool is still open when you are trying to run just the spa.
Luv & Luk, Ted
Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill libraries
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