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Thread: Chronic clog in back to back sinks

  1. #1

    Default Chronic clog in back to back sinks

    Have an 50 year old home with 2 sinks that connect on each side of the same wall. Pretty much every couple of days after water has been running for a while it will backup into both
    sinks and not go back down for hours. I've run a snake through before and it helped, but the problem came back within a couple of months. Installed mesh strainers for both sinks and
    tried draino once a month - that helped too, but eventually it came back and now it seems to be happening even more often. I don't want to risk using draino so often so I'm looking
    to either find a better, more reliable way to clear the clogs or a way to snake the drain without having to go through all the effort.

    What I mean by that is, both of the wall connections that the p traps for the sinks connect to go straight into each other. So when I get around to snaking, I have to manually push/pull
    the head of the snake downward to make sure it doesn't just go through to the other wall opening. It's very tedious and if there's no better option than snaking it I'd like to find an easier
    way to get it done. Are there metal caps I can buy to seal off the other wall opening? Like a solid metal 1.5 inch female cap?

    Last time I had a plumber over all he would talk about is installing a cleanout. While I would love to put that in, I just can't afford it. I only got $200 to work with and hopefully I can do
    something with that to at least stop this chronic slow drain/clog.

    My shower and tub drains are fine, and same goes for kitchen sink. It's only my 2 bathroom sinks that share the same drain that have this issue. Any ideas?

  2. #2
    Moderator & Master Plumber hj's Avatar
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    IT it was installed properly, there should be a cleanout in the vertical riser, but since drywallers HATE to cut holes for cleanouts it is probably buried behind the wall surface.
    Licensed residential and commercial plumber

  3. #3
    DIY Senior Member Reach4's Avatar
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    Do you have a roof vent right above there?

  4. #4

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    It appears so, but when I asked the plumber that came over about it he said it was only for the toilet.

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