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Thread: First post! Hello! (and a quick question)

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    First post! Hello! (and a quick question)

    Hello everyone,
    Joined several days ago and have been reading through the wealth of information on the site. Like many others I am glad I found it!

    My question is: What is the best way to calculate my exact pool volume? We have a T-shaped SWG pool so it's multiple WxHxD. The pool store guy (that I have not visited since last season ) told me it was 40,000 gallons. Can that be right?! I see many user signatures showing anywhere from ~10k to 25k am I thinking mine may be less than 40k. I'd just like to know what my actual volume is so I can use the Pool Math tool.

    Here's a photo from last season:


    Thanks for any help and glad to be here!

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    Melt In The Sun's Avatar
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    Re: First post! Hello! (and a quick question)

    Welcome to TFP!
    I would try to do the rectangle that goes left-right in your picture, then add the deep end to that. I bet you're pushing 40k gallons...looks like a nice big pool!

    You can get a pretty good estimate by seeing what effect adding chemicals has...so, for example, you might add 3 bottles of bleach, see how much your FC goes up, then back-calculate the volume from that.
    11,200 gal, Pebble-Tec; Tristar 2-speed 1hp - Swimclear 325 ft2 cart - SWG - A & A in-floor cleaner - Heat pump. For the poolside cooking, a Yoder Wichita and a Big Steel Keg!
    TF Test Kits -- PoolMath -- Pool School
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    Re: First post! Hello! (and a quick question)

    https://www.dropbox.com/s/yhp345fuhb...xGTDrHelp1.jpg I'd do the measurements A x B x average depth and plug those into capacity calculator Looks like that's the deep end. Then A1 x B1 x depth I'll assume that's a consistent depth shallow end? Add a few hundred gallons for the step area. Hope that helps!
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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    Re: First post! Hello! (and a quick question)

    Thank you both.
    Yes far side is deep end approx. 9ft deep. Shallow end is the same depth all the way across. Deep end starts to slope right at the two middle corners. I'll see if I can get an estimated volume this evening.

    Thanks again

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    Re: First post! Hello! (and a quick question)

    theres a calculator in pool math, just enter the two sets of measurements in there and add them together --you got it! use the shallow end depth say 3ft plus 9 =12 divide by two and the average depth of the deep end is 6 ft .
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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    Divin Dave's Avatar
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    Re: First post! Hello! (and a quick question)

    Quote Originally Posted by Woof View Post
    Thank you both.
    Yes far side is deep end approx. 9ft deep. Shallow end is the same depth all the way across. Deep end starts to slope right at the two middle corners. I'll see if I can get an estimated volume this evening.

    Thanks again
    Man thats a great pool. I dig the T shaped ones.
    On the deep end just use an average for the depth to account for the slope. Will be close enough
    9 ft /2 = 4 1/2 should do it.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

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    Casey's Avatar
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    Re: First post! Hello! (and a quick question)

    I just wanted to welcome you and tell you that is one amazing pool!
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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    Re: First post! Hello! (and a quick question)

    Well, according to my maths my pool is closer to 26k gl (where they got 40k is beyond me lol)

    Shallow- 18' x 26' x 3' = 1,404 cu ft x 7.48 = 10,500 gl
    Deep- 16' x 24' x 5.5' (avg) = 2,112 cu ft x 7.48 = 15,800 gl

    10,500 + 15,800 = 26,300 gl + couple hundred for steps would put that around 26.5k. That sound right to you guys?

    Also got my TF-100 in and currently showing:

    FC 0
    PH 6.something, hard to tell but it's below bottom reading
    TA 10
    CH 100
    CYA 40

    Drained and refilled about a foot of water due to high CYA last season. Pump is up and running and I want to get this started the TFP way this time!
    It does not look like the photo above right now lol that's from last summer, water is green.

    Pretty sure I should get pH in range and start the Slam. Ok to proceed at 40 CYA?

    Any advice would be very helpful. Thanks guys!
    26.5K gal, Vinyl, Hayward Super Pump / SwimClear Cartridge,
    AquaRite SWG/T-CELL-15, Polaris 280, TF-100/Speedstir

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    steveg_nh's Avatar
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    Re: First post! Hello! (and a quick question)

    WOW! What a pool! POOL PARTY for sure!
    24'x40' 25k gal Imperial Mountain Pond IGP, full 28 mil VynAll Ocean Breakers liner. All Hayward system: 140k BTU HeatPro heat pump, 3/4HP single speed TriStar 2" Pump, DE6020 filter, AquaPlus Automation/Salt Chlorination, remote controls, ColorLogic 4.0 lighting. Polaris 280 w/PB4-60 BP. TF100 & K1766 test kits. Rinox Palazzo pavers and Spherik coping. Pool installed 9/2013, project completed 6/16/14.

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    Re: First post! Hello! (and a quick question)

    Looks good to me! CYA should be good for now, but when you get your pool sparkling Blue, you will want to put enough in to make it 70-80. Disregard by before edit to aerate!
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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    Re: First post! Hello! (and a quick question)

    Pretty sure I should get pH in range and start the Slam. Ok to proceed at 40 CYA?
    That is correct. DO NOT aerate to raise pH....you need to get pH into the mid 7's with a dose of 20 mule team borax.......it will also elevate your TA which needs to be up as well...aeration will not do that.

    1. Elevate pH into mid 7's and TA at least 60 ppm. Elevate TA with baking soda if the 20 mule team doesn't raise it high enough.

    Now you can start your SLAM with 40 CYA. FC should be at 16 ppm and kept there as often as possible.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: First post! Hello! (and a quick question)

    Quote Originally Posted by duraleigh View Post
    That is correct. DO NOT aerate to raise pH....you need to get pH into the mid 7's with a dose of 20 mule team borax.......it will also elevate your TA which needs to be up as well...aeration will not do that.

    1. Elevate pH into mid 7's and TA at least 60 ppm. Elevate TA with baking soda if the 20 mule team doesn't raise it high enough.

    Now you can start your SLAM with 40 CYA. FC should be at 16 ppm and kept there as often as possible.

    Will do. Thanks Dave!
    26.5K gal, Vinyl, Hayward Super Pump / SwimClear Cartridge,
    AquaRite SWG/T-CELL-15, Polaris 280, TF-100/Speedstir

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    Re: First post! Hello! (and a quick question)

    Hi guys,
    Currently SLAMming the pool. Everything is looking good except one issue. I overdosed my bleach last night doh! My slam level is 16 and have brought it to 20 a couple times. Well after adding 3 gallons, 3 quarts it brought me to 31.5 ppm! ouch! Good thing is I know what I did in PoolMath. I forgot to set the % to 8.25 / 121oz doses. It was defaulted to 6% | 96oz hence the overdose. Am I going to have problems with it being that high? I checked it this morning and it's at 23. I hope I haven't messed up!

    Pic of when I started (day 1):



    Pic from today (day 6):

    26.5K gal, Vinyl, Hayward Super Pump / SwimClear Cartridge,
    AquaRite SWG/T-CELL-15, Polaris 280, TF-100/Speedstir

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    Re: First post! Hello! (and a quick question)

    26.5K gal, Vinyl, Hayward Super Pump / SwimClear Cartridge,
    AquaRite SWG/T-CELL-15, Polaris 280, TF-100/Speedstir

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    Re: First post! Hello! (and a quick question)

    Am I going to have problems with it being that high?
    The answer is very likely, "No", but the question is irrelevant because done is done.

    To be on the safe side, keep your FC at the ranges we suggest and continue as if nothing had happened.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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