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Thread: PVC and surflow manifold build

  1. #1
    Join Date
    Nov 2011
    Location
    Mi
    Posts
    121

    Default PVC and surflow manifold build

    I’m building Manifold for my shurflow 4008pump That I’m going to use with my 3/16 lines and taps. I’m not my plumber skills are 0- question is with pvc threaded fittings do you use sealant ,Teflon tape or nothing. Thanks
    Smoky lake full pint on my leader half pint arch
    110 taps on 3/16 vacuum tubing
    Homemade RO sapinator

  2. #2
    Join Date
    May 2009
    Location
    UVM Proctor Maple Research Center, Underhill Ctr, VT
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    6,414

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    Teflon tape is best for food applications.

    Note that DWV PVC is technically NOT food-grade or water potable. You can get white Sch 40 water potable PVC (most is nowadays). Grey, black or colored PVC often is not. Clear PVC is almost always water potable, as is CVPC. If it is NSF approved, it is good to go.
    Last edited by DrTimPerkins; 12-13-2020 at 11:12 AM.
    Dr. Tim Perkins
    UVM Proctor Maple Research Ctr
    http://www.uvm.edu/~pmrc
    https://mapleresearch.org
    Timothy.Perkins@uvm.edu

  3. #3
    Join Date
    Jan 2006
    Location
    Oneida NY
    Posts
    11,577

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    Yes, use teflon tape, but be careful not to screw it in or on too tight. The teflon reduces the friction and you can actually end up over stressing the fitting and have a leak. It's best to just tighten moderately and try it, if a leak develops turn it 1 more turn and try again.
    Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
    Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
    Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
    After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.

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