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Thread: Stenner injection fitting vs check valve

  1. Back To Top    #1

    Join Date
    May 2013
    Dallas area

    Stenner injection fitting vs check valve

    I see injection fittings on the stenner website for low pressure pumps but check valves for the high pressure pumps. What is the injection fitting? What is its function? Does it do the same thing as a check valve?

    Thank you,

    Dallas area, free form, quartz finish, flagstone, pentair cartridge, vs pump, swg

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Stenner injection fitting vs check valve

    The injection fitting connects the hose coming from the Stenner to the main plumbing, injecting acid/chlorine/whatever into the main water flow. A check valve prevents water from flowing backwards, from the water pipe back into the Stenner.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Stenner injection fitting vs check valve

    As Jason said, the injection fitting is just an open threaded fitting that allows you to connect the tubing from the pump to the pool plumbing. Since it's basically just an open tube it doesn't have any back flow checking ability.
    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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