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Thread: Sand Drain Leak, TR140

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    Sand Drain Leak, TR140

    I have replaced the Sand (925 lbs) in a Tr140. Removed the sand by removing the sand drain and backwashing. While removing the sand drain, I had stripped the threads on the sand drain part by not realizing it had reverse threads. The threads on the fiberglass tank look good, not striped out. So I replaced the striped out sand drain part, using pool grease on the o- ring and plumbers tape on the cap threads. Now I have drip at the 2.25 in nut where the o-ring is compressed againt the tank. Do not want to remove the sand. Should I just tighted a bit more? I have drained the water from the tank. Thinking about backing the fitting out far enoungh to wrap the threads with plumbers tape and adding some silicone. Afraid to remove complety, out of fear of notbeing able to push back thru 925 lbs of sand. Has anyone out there experienced something like this? Any tips?

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    Sand Drain Leak, TR140

    Threads merged. Please don't multiple post. Bama

    I have replaced the Sand (925 lbs) in a Tr140. Removed the sand by removing the sand drain and backwashing. While removing the sand drain, I had stripped the threads on the sand drain part by not realizing it had reverse threads. The threads on the fiberglass tank look good, not striped out. So I replaced the striped out sand drain part, using pool grease on the o- ring and plumbers tape on the cap threads. Now I have drip at the 2.25 in nut where the o-ring is compressed againt the tank. Do not want to remove the sand. Should I just tighted a bit more? I have drained the water from the tank. Thinking about backing the fitting out far enoungh to wrap the threads with plumbers tape and adding some silicone. Afraid to remove complety, out of fear of notbeing able to push back thru 925 lbs of sand. Has anyone out there experienced something like this? Any tips?

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    Mod Squad Bama Rambler's Avatar
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    Re: Sand Drain Leak, TR140

    That's a sticky wicket alright.
    I'd probably just try tightening it a little before anything else.
    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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    Re: Sand Drain Leak, TR140

    Had to try tightening up a bit. Sure enough, you were right. Thats all it needed. No leak!

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    Mod Squad Bama Rambler's Avatar
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    Re: Sand Drain Leak, TR140

    Thanks for posting back that it worked.
    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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    Patrick_B's Avatar
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    Re: Sand Drain Leak, TR140

    +1...sometimes we never hear back. Good suggestion Bama, that's what I call the Sling Blade approach.
    TFP Moderator
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    Re: Sand Drain Leak, TR140

    Overtightening will likely make matters worse. Silicone caulk is probably worse?

    Can you make a Gasket out of rubber to fill the void? Plumbers thread sealant is often a good choice on a large gasket like that.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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