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    Sizing a heat pump heater to replace a resistive heater in a custom gunite spa

    I'm hoping to get some advice on how many BTUs I'll need to heat my spa. I've never used the spa (I've been restoring it for the last 3 months), so I can't rely on past experience. I just did a few brief test runs. What I have Approximately an 850 gallon in-ground gunite spa, about 8'...
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    Help identifying HydroAir parts to connect a jet

    Hi all, I'm troubleshooting plumbing leaks in my inground hot tub. I dug up one of the jets that never worked, suspecting that it's at fault. Now I see why it never worked (although there is no leak here): Looks like it was never hooked up, and the back of the jet is wrapped in some sort of...
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    Hayward Super Pump sucking air and leaking despite new seals

    I've spent way too much time trying to figure this out and could use some help. Equipment 800 gallon in-ground hot tub Hayward Super Pump (SP2615X202S), unknown age. 2" plumbing reduced to 1.5" for filter and heater. No unions, so can't remove housing easily (and no space to add unions)...