Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: What is my inground bottom?

  1. Back To Top    #1

    What is my inground bottom?

    Just got the old liner out and am in the process of measuring for a new vinyl liner. Am looking at the floor of the pool and at first I thought it was concrete when looking at the shallow end. There was lose sand all around the edge, though. Then after looking around more, and gouging around with a screwdriver, I deducted that is was all packed sand. However on the slope it is real shiny and has a white powdery film. With my research around the internet, and seeing the different types of floors that can be used, can any one tell me what my bottom is? I have never seen poolcrete or vermiculite but I am assuming this would be in line w/ a type of concrete, but not sure. I have no idea how old the pool is, if that is one of your questions? Thanks Kay
    26,000 Gallons in ground with spa
    SWG
    Jandy equipment

  2. Back To Top    #2

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    28,406
    It's vermiculite
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3
    Thanks Dave. But can you elaborate on how you know this?
    Thanks Kay
    26,000 Gallons in ground with spa
    SWG
    Jandy equipment

  4. Back To Top    #4

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    28,406
    Sure, vinyl liner pools always (virtually) have either a compacted sand bottom or vermiculite. Since your description eliminated plain sand, vermiculite is all that's left.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

Posting Permissions

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