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Thread: shower pan full of water

  1. #1

    Default shower pan full of water

    The grouting in my stall shower is gone along one strip and water has drained down an 8 inch very thin crack along one wall. It appears to have filled up the shower pan underneath. I want to drain out all the water from the shower pan before grouting over the crack. Are there any suction systems that can fit down this narrow crack to the pan to suck it dry? I've been using sheets of paper towel to wick it up but it's a very slow process.

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    New England


    If you understand the design of a properly built shower, you'd realize it isn't built properly and that neither the tile nor the grout will prevent this from happening, or continuing to happen, but just slow it down.

    In a properly constructed shower, there are four layers to a shower pan:
    1. a presloped layer of deck mud (sloped towards the drain)
    2. a waterproof liner (it needs to be sloped so water can drain out)
    3. another layer of deck mud to give you something tile will stick to
    4. the tile on the floor.

    The pan liner attaches to the clamping drain and makes a waterproof shield. There are some small slots or holes in the drain (called weepholes) that allow any water that gets under the tile (it will, regardless of what you do) can drain out. If those are blocked (fairly common) or the liner is installed flat on the floor (even more common), your pan will eventually fill up with stagnent water; nothing you can do about it but rebuilt it properly or live with it.

    Check out www.johnbridge.com for help on fixing your shower.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014


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