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

Thread: Double Cover Pool?

  1. Back To Top    #1

    Double Cover Pool?

    I have a 16x34 in ground pool and use a mesh safety cover for the winter. I don't want to lose the safety aspect of the mesh cover but have had lot's of dirt and algae when opening in the spring. I use the typical winterizing kits when closing but still have problems when opening. I was thinking of double covering this year with a solid tarp type cover and then the safety cover over top of it. Is this a good/bad idea? Thanks for any advice.


  2. Back To Top    #2

    Join Date
    Aug 2010
    Boston, MA

    Re: Double Cover Pool?

    It'll help a lot more to close late (when the water temperature is significantly below 60 degrees) and open early (before it reaches 60 degrees). Those temperatures inhibit algae growth. A dose of polyquat at closing can also be helpful in preventing algae at opening.

    I suppose the tarp might help with the dirt aspect, but I'd be concerned about snow/ice piling up on it and putting more weight on the cover than it's designed for. After all, it's intended to let water run through it, and if that is changed it's not working as designed any more. But that might be overparanoid of me.
    20k gallon IGP
    Plaster over gunite
    3/4 hp Hayward pump
    Purex Triton DE filter
    TF100 test kit w/ speedstir

  3. Back To Top    #3

    Join Date
    Apr 2011
    Lynchburg VA

    Re: Double Cover Pool?

    I have given some thought to doing the same thing but elected not to due to the cost of the solid cover and water bags to keep it in place. I was planning on putting the solid cover over the safety cover. I am confident the safety cover could hold the weight of a snowfall around me but water would need to be siphoned off as the snow melted I think. It is recommended that with a mesh cover you dont close the pool until the water tempt reaches 50 degrees and reopen before the temp rises above 50 degrees.
    18x36 Vinyl In-ground w/roman ends 27,400G, Hayward 3/4hp with 300# sand filter. Hayward heat pump heater

    Pool School
    Pool Calculator
    Test Kits

Posting Permissions

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