Basement septic lift station-check valve

Discussion in 'Pumps and Tanks Well Forum & Blog' started by Eagle45, Jan 1, 2009.

  1. Eagle45

    Eagle45 New Member

    Jan 1, 2009
    Recently had plumber install lift station for our basement sewage. Inspector noted the following missing reqiuirements from the 2-inch ABS discharge pipe:
    -check valve.

    My main question is what type of backfow valve to use. I picked up one with a flapper valve inside, but a note that came with it indicates this is for a horizontal installation. So I have another valve (photo attached) that slides right inside the 2-inch ABS. Is this the correct valve to use in this application?
    What keeps this type of valve from moving up & down inside the pipe?

    Also wondering as to positioning of the 3 missing items. My guess would be, starting at the bottom, the union, then the check valve, then the shutoff at the top? Does it matter what height each is at? I figured the shutoff should be right close to the top where it enters the main sewage line.

    For the shutoff, I figured just I would use just an ordinary gate valve?

    Thanks in advance.

    Attached Files:

  2. Redwood

    Redwood Master Plumber

    Dec 15, 2007
    Service Plumber
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