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Thread: Cavitation noise at solar valve

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    Join Date
    Oct 2007
    Valrico, FL

    Cavitation noise at solar valve

    I have a solar heater which is controlled by a three way valve. Recently (in the past several months) I have noticed a noise similar to cavitation or turbulence coming from around that valve. Filter pump is still working correctly, filter pressure is still at its usual level, no discernible changes other than the noise. Anyone have any ideas?
    7,500 gal, IG pool, L shape 22' x 15', 1.5 hp pump, cartridge filter, AquaPlus SWG/Controller, Pebble-Tec liner.

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    TFP Guide
    cowboycasey's Avatar
    Join Date
    Jul 2013
    Fletcher, OK

    Re: Cavitation noise at solar valve

    Can you try to manually move it back and forth and see if that helps, if it's a jandy valve you can take it apart and see if it is damaged somehow..
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
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  3. Back To Top    #3
    Mod Squad
    Join Date
    Aug 2012
    DFW, TX

    Re: Cavitation noise at solar valve

    If the filter is dirty maybe there isn't enough pressure to fully close the VRV. What is the clean pressure and current pressure? We recommend cleaning a filter when pressure rises 25%.
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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