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Thread: pip dope or tape?

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    pip dope or tape?

    I replumbed my pad last year and appears I have a leak, well two now. One at the elbow after the pump going to the filter (probably not enough glue). And the second one appears to be coming from the threaded insert that goes in the pump. I used dope on it last year and wondering what could be causing it to leak (dribble but still a leak).
    13k IG pebble pool w/waterfall, 1hp whisperflow pump, pentair ccp320 cartridge filter
    Circupool SI45+ swg
    TF100 +speed stir Taylor 1766 salt test

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    pwrstrk's Avatar
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    pip dope or tape?

    I'm a thread sealant "paste" type of guy all the way for my threaded fittings.

    If it's got a leak, take it apart, clean the old sealant off the threads and re-apply the thread sealant.
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Mod Squad Bama Rambler's Avatar
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    Re: pip dope or tape?

    I'm a paste guy too. Just be sure to get the type for plastic piping.
    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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    bobodaclown's Avatar
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    Re: pip dope or tape?

    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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    Isaac-1's Avatar
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    Re: pip dope or tape?

    I guess someone has to vote for tape, but I have a good bit of experience with it on high pressure and fuel lines, etc. I think paste is easier and tape tends to work better if it is done right.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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    pwrstrk's Avatar
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    Re: pip dope or tape?

    Quote Originally Posted by Isaac-1 View Post
    I guess someone has to vote for tape, but I have a good bit of experience with it on high pressure and fuel lines, etc. I think paste is easier and tape tends to work better if it is done right.
    That's the key with tape, has to be done right. I've used tape, I just use it on small dia. fittings. On the big stuff I go with the paste. It's never failed me.
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Re: pip dope or tape?

    Thanks for the feedback/advice. I will be redoing it again coming weekend and will probably try a different thread sealant. I could not find the can of the one I used but I am positive it was http://www.homedepot.com/p/Oatey-Gre...ct_description that I used. Said it was good for plastics but maybe will try looking for one that specifically says pvc
    13k IG pebble pool w/waterfall, 1hp whisperflow pump, pentair ccp320 cartridge filter
    Circupool SI45+ swg
    TF100 +speed stir Taylor 1766 salt test

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    Re: pip dope or tape?

    Quote Originally Posted by pwrstrk View Post
    That's the key with tape, has to be done right. I've used tape, I just use it on small dia. fittings. On the big stuff I go with the paste. It's never failed me.
    What is the "correct" way to use the tape? I've successfully used the tape quite often with indoor plumbing on 1/2" lines and such, but I am not having much success on my 1 1/2" fittings on the swimming pool.
    12Kgal, AG, Sand, Hayward Swim Pro SW256T PAKS

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    Re: pip dope or tape?

    I've successfully used the tape quite often with indoor plumbing on 1/2" lines and such, but I am not having much success on my 1 1/2" fittings on the swimming pool.
    That has been my experience as well.

    I think you know we have had this discussion several times on the forum and what we learn is that everyone does it a bit differently.

    The ultimate answer is probably to do what you are comfortable with. I am comfortable taping 1" or less and doping 1.25" or greater but it's only because I have done that before and it "feels" right to me......not because it is the definitive answer.

    There are likely many on this forum that can easily tape a 3" joint or dope a 1/2" joint.

    Of course, if you are helping someone inexperienced, you should slap them upside the head if they try to do it any way but your way......they will marvel at your great skills!
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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