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Thread: Hayward de4800 relief valve not tightning

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    Hayward de4800 relief valve not tightning

    I have a de4800 my issue is the relief valve is leaking. The threads on the tank must be stripped I have already tried a new relief valve but it just does not tighten. I Tried wrapping the threads on the relief valve with teflon tape but still can't get it to seal any advice on what i can do. There must be something i can do i really dont want to replace the tank.

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    chiefwej's Avatar
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    Re: Hayward de4800 relief valve not tightning

    There should be a small O ring that seals it.
    chiefwej
    Tucson, AZ
    16x36 rectangular (19k) Pebble Tec play pool/spa, Pentair Intelliflo VS 011018, Super II 2hp (spa), Aqua Rite T-15 SWG, Pro Grid 60 DE, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

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    Re: Hayward de4800 relief valve not tightning

    With the oring the valve wont tighten it still spins and wont get tight


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    Mod Squad Bama Rambler's Avatar
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    Re: Hayward de4800 relief valve not tightning

    You could try epoxy. Either fill the hole and then redrill and tap it or just epoxy the valve in place.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Re: Hayward de4800 relief valve not tightning

    Do you guys think a thru hull fitting or bulkhead fitting may work i have seen them with threads on the inside hole too but the smallest i have seen is 1/2 inch but for half inch to fit i will have to make the hole bigger. It would be nice to find a 3/8 double threaded bulkhead adapter any ideas if this will work.


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    Mod Squad Bama Rambler's Avatar
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    Re: Hayward de4800 relief valve not tightning

    I'm not sure a bulkhead fitting will work but it's certainly worth a try.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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