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    Skip97's Avatar
    Skip97 Posts: 4, Reputation: 1
    New Member
     
    #1

    Mar 25, 2009, 08:14 PM
    Problem Lining Up p Trap
    I changed my vanity top and the drain tail piece will no longer line up with the p trap entrance. The p trap exit pipe going into the wall is too far out so I can't rotate the p trap to make it the entry line up with the tail piece. I could cut the pipe that comes out from the wall and use a compression type coupling but I don't think code allows more then one slip fit between the trap and the wall. The code here (St. Louis) doesn't allow fernco flexible fittings either. The pipe is solvent welded to the pipe in the wall. What various options might I have? The p trap and wall line are both 1-1/2 inch. I might not have enough length on the p trap line going in the wall to cut out enough so could I solvent weld a 45 degree pvc to the abs? Are there other ways I could fix this?
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
     
    #2

    Mar 26, 2009, 04:05 AM
    Hi Skip...

    You have a few options:

    1) Cut out the ABS piping and use an ABS coupling to join back onto the pipe and install a new ptrap and adapter (desanco fitting) to pick up the pop-up assembly of the new sink. Do NOT mix ABS and PVC fittings. If a local home supply store doesn't have ABS then a plumbing supply store will... ;)

    2) Install a FLEXIBLE tailpiece... see picture. This tailpiece is great for offsetting the tailpiece between 1" and 3"... anything greater and this won't work. These flexible tailpieces are available at all home supply stores.

    3) Install a 1.5" plastic x 1.5" plastic shielded clamp. These are a legal transition fitting and work great. You are correct that flexible fernco type couplings are not correct for this application.

    I think the first option is best, but the 2nd option is the fastest!

    Let me know if you have any more questions...

    MARK
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