Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 3 of 3

Thread: Sealer for flagstone spillway

  1. Back To Top    #1

    Sealer for flagstone spillway

    I have a flagstone spillway from the spa to the pool. When running the filter pump on a low speed it's not really enough flow to get the water going (there is a separate booster pump for this). Since it's all flagstone and grout, including flagstone around the waterline on the inside of the spa, I'm getting some seepage. Water trickles through the grout, under the flagstone ledge then down the spillway. And since it's a slow I'm seeing some calcium buildup.

    So... I'm looking for a sealant product that I can apply along the spa's inside edge to prevent leaking through the grout. Any idea what would hold up in this environment?

    Here is an image of what I'm trying to describe...

    Denver, CO

  2. Back To Top    #2
    maxepr1's Avatar
    Join Date
    Mar 2011

    Re: Sealer for flagstone spillway

    I use I think it is Deck-O-Seal. Comes in a gallon jug, looks like milk. I apply with a roller to my flagstone coping. It cuts down on the erosion and also water proofs the flagstone without changing the color at all. Has to be reapplied couple times a year.
    40'x19' IG Diamond Brite 29K 4' Waterfall/Dive Rock FNS60 DE Inteliflo VS 2hp Whisperflo pumps Aqualogic(P4) SWG TF100 Tester

    Pool School, Pool Calculator,TFTestKits,

  3. Back To Top    #3

    Re: Sealer for flagstone spillway

    Think it'll make grout waterproof? I was thinking that there might be something that would prevent the inevitable cracks, or minor gap, that'll appear between the bottom of the flagstone coping and the grout.
    Denver, CO

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts