Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 2 of 2

Thread: Sand erosion (?) behind liner in inground pool

  1. Back To Top    #1

    Join Date
    Aug 2014
    BC, Canada

    Sand erosion (?) behind liner in inground pool

    Hi all,

    We installed a new liner in our inground pool last year with no problems. The bottom of our pool is sand which we tried to trowel smooth as best we could. Walls are steel which we covered in foam due to rusting.

    We are just getting ready to close our pool for the season and found a "crater" of about 6" in diameter behind the liner. It is located just below the wall at the area where the down slope starts. It appears like the sand has eroded away in this area. There is a gap behind the liner and we are worried that the gap will either increase or the liner will not be able to survive with no support behind it in this area. We are thinking of pulling the liner back just enough to direct sand (using a tube and funnel) to the crater/gap with someone in the pool to pack it in. We would drain the pool down to that location first. Has anyone else run into this problem? What did you do?

    Any help or advice would be appreciated!!

  2. Back To Top    #2

    Join Date
    Mar 2007
    San Rafael, CA USA

    Re: Sand erosion (?) behind liner in inground pool

    Welcome to TFP!

    I'm sorry no one was able to answer your question. Unfortunately, this isn't my area of expertise but perhaps this will bump up your thread and someone will have an answer for you.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

Posting Permissions

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