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Thread: stuck cap on Triton II TR-140 sand filter

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    stuck cap on Triton II TR-140 sand filter

    We have 3 of these filters on our 100k gal pool. They have a screw on cap (about 10 in diameter) with a pressure gauge on top of the cap. I've been fighting a losing battle with one of the caps and I'm looking for any tricks to get it off. I've broken one of the plastic wrenches that fits over the fins on the cap. I've tried getting more leverage with a length of pipe on the wrench handle. I've tapped on the cap with a rubber mallet, scraped around the rim, applied various lubricants. It's stuck and I'm stuck. Any ideas? Thanks. --Fred
    100K gal. IG, plaster,3 sand filters, ITT Mohler cast iron pump, 7.5 hp motor, 350 gpm

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    Ohm_Boy's Avatar
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    Re: stuck cap on Triton II TR-140 sand filter

    Hair dryer?
    [center:1kpalu48]Helpful Links: Pool School | CYA/Chlorine Chart | Pool Calculator[/center:1kpalu48]

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    Re: stuck cap on Triton II TR-140 sand filter

    Get a replacement cap, o-ring and pressure gauge 1st. Then cut the old one off. If it's stuck, force it. If it breaks, it needed replacing anyway.

    Scott
    Owner of - PoolGuyNJ LLC
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    Re: stuck cap on Triton II TR-140 sand filter

    Quote Originally Posted by FredW
    We have 3 of these filters on our 100k gal pool. They have a screw on cap (about 10 in diameter) with a pressure gauge on top of the cap. I've been fighting a losing battle with one of the caps and I'm looking for any tricks to get it off. I've broken one of the plastic wrenches that fits over the fins on the cap. I've tried getting more leverage with a length of pipe on the wrench handle. I've tapped on the cap with a rubber mallet, scraped around the rim, applied various lubricants. It's stuck and I'm stuck. Any ideas? Thanks. --Fred
    Have you relieved all the pressure/vacuum?

    Otherwise, yeah, get new ones. Be exceedingly careful when cutting near any threads, you don't want to bugger them up.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
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    Re: stuck cap on Triton II TR-140 sand filter

    I have that same filter and those caps are a real pain. I put Vaseline on mine each time I remove it (seldom) and that probably is the only reason I haven't had to cut it out.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: stuck cap on Triton II TR-140 sand filter

    Thanks for the replies. Gave it one more try with no pressure or vacuum and, what the heck, even tried the hair dryer. No luck. Will order the new closure and get the sawsall and vaseline together for the repair job.
    100K gal. IG, plaster,3 sand filters, ITT Mohler cast iron pump, 7.5 hp motor, 350 gpm

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    Re: stuck cap on Triton II TR-140 sand filter

    Hi, Fred,

    One word of caution....PoolguyNJ suggested that vaseline can be corrosive to some o-rings and I believe he is right. My o-ring is apparently impervious to it but it's 8 years old now and they may have changed.

    There is a product called "pool lube" (I think that's the name) that will likely be a safer choice.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: stuck cap on Triton II TR-140 sand filter

    Quote Originally Posted by duraleigh
    There is a product called "pool lube" (I think that's the name) that will likely be a safer choice.
    There are may lubes out there for o-rings. A common brand is Magic Lube from Aladdin. These lubes are telfon based making them friendlier to the o-ring material.
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    Re: stuck cap on Triton II TR-140 sand filter

    I'm resurrecting this thread because I'm facing this very issue with my Triton II's closure cap. I'm going to have to use a saw of some sort to remove it. Any recommendations on the type of tool(s) I should use are appreciated. A sawsall was mentioned as a possible tool but I'm thinking this might be more effective: Rockwell RK3441K Compact Circular Saw Kit - Power Circular Saws - Amazon.com

    Thoughts?
    28k gallon in-ground pebbletec pool w/waterfall and grotto feature
    Triton II sand filter
    "The Pool Cleaner" 4-wheel vacuum
    1.5hp main pump; 1.5hp water feature pump
    Taylor K2006 test kit

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    Re: stuck cap on Triton II TR-140 sand filter

    Try drilling a hole through both sides of the dome and then stick a metal rod through the dome and unscrew the dome with the metal rod.

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    Re: stuck cap on Triton II TR-140 sand filter

    I have that same filter and I can attest it is a booger bear to remove. I got it loose by using the plastic tool and tapping the ends over and over with a rubber mallet but I thought I was going to break it.

    I can't quite picture JamesW's fix but he has a ton of experience.....I think I was just lucky.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: stuck cap on Triton II TR-140 sand filter

    Pump Strainer Pot Lid Handle Cracked Off!!!!!!

    Try the wrench first. Try tapping the handles with a rubber hammer. Then try extending the handles with pieces of pipe. As a last resort, try the metal rod and then replace the dome.

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    Re: stuck cap on Triton II TR-140 sand filter

    Some good suggestions here. I gave that thing all my strength and it just looked at me and laughed. I'll give a couple of these suggestions a try tonight. If unsuccessful, what are your thoughts on using this to cut it off piece-by-piece:
    Dremel 4000-2/30 120-Volt Variable Speed Rotary Tool Kit - Corded - Power Rotary Tools - Amazon.com

    I just don't have much confidence that anything else will work.
    28k gallon in-ground pebbletec pool w/waterfall and grotto feature
    Triton II sand filter
    "The Pool Cleaner" 4-wheel vacuum
    1.5hp main pump; 1.5hp water feature pump
    Taylor K2006 test kit

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    Re: stuck cap on Triton II TR-140 sand filter

    Here's another idea.

    1) Put on the lid wrench.
    2) Find a cylinder that perfectly fits over the dome down to the flat part.
    3) Make the bottom water tight with glue or tape.
    4) Fill the cylinder with ice water.
    5) Wait a few minutes for the dome to cool and shrink.
    6) Unscrew with wrench.

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    Re: stuck cap on Triton II TR-140 sand filter

    I have a steel wrench, with long ends, never a problem for me.

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    Re: stuck cap on Triton II TR-140 sand filter

    Quote Originally Posted by pool&spatech View Post
    I have a steel wrench, with long ends, never a problem for me.
    Well who woulda thought that a runner mallet and my wife holding things still would do the trick. I'm happy to post this pic:

    Appreciate all the advice, folks!

    28k gallon in-ground pebbletec pool w/waterfall and grotto feature
    Triton II sand filter
    "The Pool Cleaner" 4-wheel vacuum
    1.5hp main pump; 1.5hp water feature pump
    Taylor K2006 test kit

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    Re: stuck cap on Triton II TR-140 sand filter

    Good job. Thanks for the update.

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    Re: stuck cap on Triton II TR-140 sand filter

    Quote Originally Posted by asusundevil View Post
    Well who woulda thought that a rubber mallet and my wife holding things still would do the trick. I'm happy to post this pic:

    Appreciate all the advice, folks!

    Sent from my VS990 using Tapatalk


    28k gallon in-ground pebbletec pool w/waterfall and grotto feature
    Triton II sand filter
    "The Pool Cleaner" 4-wheel vacuum
    1.5hp main pump; 1.5hp water feature pump
    Taylor K2006 test kit

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