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Thread: polaris 380 pressure relief valve leaking??

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    Join Date
    Jan 2011
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    Huntsville, AL
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    polaris 380 pressure relief valve leaking??

    new pool and Just doing my daily checks while waiting on the temps to warm up. I reached down to clean the little filter on the end of the polaris hose that goes into the wall. I heard and then felt air coming from the black cap that sits on the pressure relief valve. Is that normal? I unscrewed it and put it back on and it is still doing it.

    Thanks.
    16 x 32 inground with Tara Liner, 1 skimmer, 3 returns,
    1HP Hayward Super Pump
    Hayward Sand Filter
    Polaris 280 w booster pump
    Hayward SWG & Aqua Plus
    k-2006 Test Kit

  2. Back To Top    #2

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    Re: polaris 380 pressure relief valve

    I said air but probably should have said water shooting from the valve.
    16 x 32 inground with Tara Liner, 1 skimmer, 3 returns,
    1HP Hayward Super Pump
    Hayward Sand Filter
    Polaris 280 w booster pump
    Hayward SWG & Aqua Plus
    k-2006 Test Kit

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    Re: polaris 380 pressure relief valve leaking??

    same problem here, anyone ?

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    Sunny Central Florida
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    Re: polaris 380 pressure relief valve leaking??

    Nope, it's doing what it's supposed to do....the pressure relief valve is supposed to let out whatever excess water pressure your polaris does not need. So, if you want it to stop "leaking" you can send less water to the polaris return, but then you run the risk of the unit not getting enough pressure.....As long as it's not super powerfully shooting out, I wouldn't worry. If it's shooting out pretty high pressure, you can reduce the flow to that return until it's just a little going out.
    IG Plaster 20,000gal, attached spa w/ spillover, hayward C12002 cart filter, 1 1/2hp pump w/ polaris 360
    6/16/12 - PH 7.6, FC 6, CC 0, CYA 30, TA 80, Calcium 310

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    Re: polaris 380 pressure relief valve leaking??

    Hmmm, I forgot....you all have a booster pump. My 360 runs off of a regular return pipe, and I can control how much of the flow I divert toward it. I don't know how to do that with a booster pump model. It's probably fine anyway, the point of the valve is to keep your unit from going too fast, I think (LOL!!)
    IG Plaster 20,000gal, attached spa w/ spillover, hayward C12002 cart filter, 1 1/2hp pump w/ polaris 360
    6/16/12 - PH 7.6, FC 6, CC 0, CYA 30, TA 80, Calcium 310

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    In the Industry


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    Re: polaris 380 pressure relief valve leaking??

    If the pressure is too high, locate your 3-way diverter valve and move the diverter to reduce the amount of flow back to the head unit.

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    maxepr1's Avatar
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    Re: polaris 380 pressure relief valve leaking??

    Allot of times if there is a little debris that maybe getting stuck in the jets it's just enough back pressure to open the relief valve up a bit.
    40'x19' IG Diamond Brite 29K 4' Waterfall/Dive Rock FNS60 DE Inteliflo VS 2hp Whisperflo pumps Aqualogic(P4) SWG TF100 Tester


    Pool School, Pool Calculator,TFTestKits,

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    stev32k's Avatar
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    Re: polaris 380 pressure relief valve leaking??

    If your cleaner wheels are rotating at 28 - 32 RPM a leaking relief is not a problem. If the cleaner is running too slow it can be a problem. Polaris has had a lot of problems with their relief valves. I bought a new 280 year before last that was running far too slow.

    I called Polaris to see what I was doing wrong and they had me check the relief and sure enough it was leaking by pretty badly. Polaris said they were having problems with those valves and sent me a new one - it leaked also. I finally removed the valve and replaced it with a plug and the Polaris started working just like it should and has been operating well since then.
    20' x 40' IG with vinyl liner volume approx. 35,000 gal.1.5 H.P. main pump, Polaris 280 cleaner W/ 3/4 H.P. booster pump
    Hayward sand filter, 3.14 sq ft, 62 gpm. Stenner 45 MPH10 chlorine feed pump. 1 micron final filter bags (home made and very effective)

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    Re: polaris 380 pressure relief valve leaking??

    Quote Originally Posted by stev32k View Post
    If your cleaner wheels are rotating at 28 - 32 RPM a leaking relief is not a problem. If the cleaner is running too slow it can be a problem. Polaris has had a lot of problems with their relief valves. I bought a new 280 year before last that was running far too slow.

    I called Polaris to see what I was doing wrong and they had me check the relief and sure enough it was leaking by pretty badly. Polaris said they were having problems with those valves and sent me a new one - it leaked also. I finally removed the valve and replaced it with a plug and the Polaris started working just like it should and has been operating well since then.
    What plug (size and where to buy?) did you use?

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