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Thread: Permanently connecting backwash to sewer line?

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    Join Date
    Jun 2015
    Phoenix, AZ

    Permanently connecting backwash to sewer line?

    In our city, we are allowed to backwash pool water to the sewer clean-out line (NOT the storm water, but the sewer). In our build, I have the backwash pipe (2.5") running all the way to the front of the house and it ends right next to the sewer clean-out. When I do a DE backwash, I was planning on putting in a 2 ft blue hose - connect one end to the backwash pipe and other end to sewer clean-out.

    Can I "permanently" hook the backwash line to the sewer clean-out? I have plumbed in a backwash sight-glass near the pump. So, I can easily see the backwash water clarity and turn off the pump (don't have to be near the discharge end).
    If I permanently connect backwash line to sewer clean-out, is there a way to prevent the sewer 'smells' from coming into the backwash pipe?

    To summarize, has anyone permanently connected backwash to sewer clean-out?
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  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Permanently connecting backwash to sewer line?

    You'd have to install a trap and most likely there are some rules about connecting fresh water sources to the sewer. The JHA may require a backflow preventer if you want to hook it up permanently. You certainly wouldn't want a sewer backup to wind up in your pool plumbing.
    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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    aboykin2269's Avatar
    Join Date
    Jun 2015
    Charlotte NC

    Re: Permanently connecting backwash to sewer line?

    I would ask your water/sewer provider. Like Bama said, there are probably requirements you must meet in order to do that. Also, you would have to hook it up in a way that wouldn't interfere with the cleanout. The cleanout is there for a reason.
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