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Thread: Upsizing jet return pipe

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    Upsizing jet return pipe

    Our current pool/spa system (6 x 9 SPA) uses single VS 3050 and runs thru clear and clean 400 filter and max temp 400 heather (all pentair) feeding 7 mini-storm (Waterway) 12 GPM jets using 2" return pipe over 120' with drop of 10' to pool equipment pad. Suction is 2 1/2" pipe.

    At 3450 RPM we see 72 GPM between pump and filter. Jets performance is mediocre.

    Question: shall we upsize the jets return pipe to 2 1/2" to get less refraction and by doing so could we get better jets performance or waste more money and get dedicated VS 3050 to use for jets without filter and heather ( 2 1/2" return and 3" suction) and having filtered & heated water run using pool pump to the SPA?

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    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: Upsizing jet return pipe

    You could try putting in a bypass around the filter and heater to see if that helps. That is much easier than replacing 120' of return pipe.
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