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

Thread: new pool closing

  1. Back To Top    #1

    new pool closing

    I'm new to this forum but have done some reading on it.
    I have a new gunite pool in New York so it's getting closing time. I have read that the plaster is supposed to cure under water for a year. Don't know how accurate this is but it's what I have read.
    I have 4 or 5 inch slate tiles around the water line and the guy who installed it said keep the water below the slate in the winter or they will break.
    So if I drain the pool below the skimmers and water feeds to blow out lines I will be exposing the plaster which is about 5 months old now.
    Is that ok ??
    Is it true the slate will crack if the water creeps up there durring the winter ?
    Does anyone in a northern climate not close their pool and just run the pump every now and then ?
    I would appreciate any advice bacause I'm not sure how to handle this.
    Thank You, Tom
    17,000 gal. inground pool, Diamond Brite cool blue, Kreepy Krauly Legend inground pool cleaner(w/seperate pump), Pentair Clean & Clear Plus cartridge filter (420sq.ft), Pentair IntelliFlo vs-3050 variable speed pump, Pentair Rainbow model 320 chlorine feeder, Pentair IntelliBrite 5g LED lights (2), waterfall and 32 ft. of weeping wall (w/seperate pump), 2 skimmers, 4 drains, tanning ledge w/2 geisers, Jandy EE2500TI Heat Pump

  2. Back To Top    #2

    Join Date
    May 2007
    South Central NJ

    Re: new pool closing

    Ice expands, and so if it expands against the tile and any voids exist in the thin set or in the tile, the pressure can chip or crack them.

    A little exposed plaster below the tiles is not going to hurt it.

    All water in the lines must be blown out and sealed. The main drain gets air locked while blowing. This ensures ice can't form in the plumbing. That would create freeze cracks. That would be very bad.

    The skimmer should have something to absorb the pressure when the water in it freezes. Most use a device called a Gizmo or a blow through extension. These seal the skimmer line and allow ice to squeeze it instead of the walls of the skimmer, potentially cracking it.

    All water must be drained from the equipment too.

    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

Posting Permissions

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