Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 6 of 6

Thread: How much does the water level drop through evaporation?

  1. Back To Top    #1

    How much does the water level drop through evaporation?

    I finished filling my Intex 20' x 48" pool Tuesday. Started the pump and added salt on Tuesday. Pool was ready by Wednesday. It is now Thursday, we still have not been in the pool, but the water appears to be at least 1/2 lower. How quickly do you lose water through evaporation? If I have a leak there is no obvious sign of water anywhere.

    We haven't gotten into it yet because it is 4 inches off, and we don't know what to do...

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,086

    Re: How much does the water level drop through evaporation?

    It varies a whole lot depending on many factors. Fill a bucket with water and set it near the pool and compare the water loss in the bucket to the water loss in the pool.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  3. Back To Top    #3
    sonflower's Avatar
    Join Date
    Jun 2010
    Location
    Fort Worth, TX
    Posts
    157

    Re: How much does the water level drop through evaporation?

    Quote Originally Posted by krlinger
    I finished filling my Intex 20' x 48" pool Tuesday. Started the pump and added salt on Tuesday. Pool was ready by Wednesday. It is now Thursday, we still have not been in the pool, but the water appears to be at least 1/2 lower. How quickly do you lose water through evaporation? If I have a leak there is no obvious sign of water anywhere.

    We haven't gotten into it yet because it is 4 inches off, and we don't know what to do...
    Am I reading you lost 1/2 total of your water in 2 days? or is that 1/2 inch?

    In 95-100 degree sunny weather, I am not sure what we lose per day by way of evaporation, but I'd say (quite unscientifically) possibly 2/10ths of an inch per day on the worst sun scorched day.
    Pool: (2003) IG Plaster 14,209 gallon (Water Surface 421 sq. ft.) ~ Spa: 18" raised kidney
    Triple spillway (Waterfall) ~ With 6' slide ~ Hayward's Goldline Controls Aqua Rite Digital Electronic Chlorine Generator (Salt System) ~ 40K Salt Cell ~
    ~ AquaLink RS -4 ~ Purex Whisper Flow 2 HP~ Aquatech 60 sq. ft. DE Filter Normal Pressure 22 # ~ MiniMax NT (Propane) Heater 400,000 BTU ~ Jandy Valve Actuator ~Letro Legend Cleaner ~ K-2006 & K-1766 Test Kits

  4. Back To Top    #4

    Re: How much does the water level drop through evaporation?

    Anyone have suggestions about the water being 4 inches off level? My husband does not want to drain the pool!! But just based on what I've read, I am scared to death to get into the darn thing.

    Will it be OK through about September?? and then we'll take it down.

  5. Back To Top    #5
    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    Location
    East Texas
    Posts
    8,995

    Re: How much does the water level drop through evaporation?

    Full sun, .......all day.....East Texas............95 degrees plus............half inch every couple days. You gotta allow for splashing and having a good time too! 4 inches off--------you don't have very much choice BUT to drain and re-level.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

  6. Back To Top    #6
    orthofish's Avatar
    Join Date
    Jan 2009
    Location
    Northern Middle Tn.
    Posts
    562

    Re: How much does the water level drop through evaporation?

    Quote Originally Posted by krlinger
    Anyone have suggestions about the water being 4 inches off level? My husband does not want to drain the pool!! But just based on what I've read, I am scared to death to get into the darn thing.

    Will it be OK through about September?? and then we'll take it down.
    I hope someone answers this. I just had some friends put up an AGP and it's off also.
    Lynn

    16x38 FG, 20,400G, 1HP/2sp Tristar pump, Hayward 425sq ft cart. filter, Pro Logic4, SWCG, 3 returns, 2 main drains, 1 skimmer, 4 Pentair deck jets, Hayward Phantom pressure cleaner/booster pump, TF-100 of course :-)orthofish-s-pool-build-finally-t13179.html

Posting Permissions

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