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  1. #11
    Rolling Along
    Join Date
    Feb 2021
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    Quote Originally Posted by NEOhio View Post
    Someone can correct if wrong but I don’t think excessive pressure will effect any plumbing during black tank flush since that process is opened ended in the tank and does not build up any pressure or add water to any of the other pex lines throughout the system that holds pressure.
    I always take my regulator off when I use the black tank flush. Open system, and I want the highest pressure (within reason) to do its job.
    2023 Chevy 3500HD CC SB 4x4 Dmax
    2021 GD 320G with 8K axles

  2. #12
    Long Hauler
    Join Date
    Jul 2021
    Location
    Platte City, MO
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    Quote Originally Posted by Wileykid View Post
    I always take my regulator off when I use the black tank flush. Open system, and I want the highest pressure (within reason) to do its job.
    Ditto. I feel the same way.
    Howard and Peggy
    2019 Momentum 351M, and 2018 RAM Cummins dually 6-speed.
    His: 1999 Honda Interceptor
    Hers: 2013 Spyder ST-S

  3. #13
    Seasoned Camper
    Join Date
    Jul 2017
    Location
    Near Birmingham, AL
    Posts
    372
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    I don't want my hoses to blow, so I use a Y-adapter (with valves) at the faucet, a regulator on one side to the trailer and the other unregulated side for other watering duties, including black tank flush.
    2023 Reflection 315RLTS
    2017 Ford F-350 Crew Cab Short Bed SRW, 6.7L Diesel
    Hensley Swift Arrow

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