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Thread: confusing results pool calc check

  1. Back To Top    #1

    Join Date
    May 2016
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    Swansea MA
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    62

    confusing results pool calc check

    I got home today and the kids were in the pool. Did my test when I get home as always. After 3 days of not adding bleach as the FC was dropping very slowly. My test results showed FC .5 and CC 2.5. Went to pool calc and for my pool 13,500 gallons it said to add 90 oz of 8.25% bleach to raise it to 6. I only had 54 oz so i added what I had and vacuumed then ran to Wally World for more. Grabbed 5 gallons of the 10% pool bleach figguring I would need a SLAM this weekend. Got back from Wally World ate and went and tested just to be sure of where I was and BOOM FC 7.5 and CC.5?

    Could the kids being in the pool throw my readings off that far?

    Am I calculating wrong?

    Am I just missing something?

    7.5 will be my starting point for my OCLT will see in the morning.
    24 ft round AG 12,700 gal. vinyl
    Doughboy Sequel II Rotary DE filter
    TF-100 test kit. 1st full season

  2. Back To Top    #2

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    Re: confusing results pool calc check

    You most likely made a mistake the first time. Story of my life operator error.

    Check again in the morning see what it is.

    You generally want to raise the chlorine to 10 to do an OCLT.
    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

  3. Back To Top    #3

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    Re: confusing results pool calc check

    Well failed the OCLT.
    5:45 am
    FC 5
    CC 1.5
    Looks like a SLAM is in my future. I must admit kind of excited to do my first. Although with my earlier mistake I am wondering. Won't be able to start until Saturday afternoon so maybe will do another test tonight.
    24 ft round AG 12,700 gal. vinyl
    Doughboy Sequel II Rotary DE filter
    TF-100 test kit. 1st full season

  4. Back To Top    #4

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    May 2016
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    Swansea MA
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    Re: confusing results pool calc check

    Got home just now and tested again:
    FC 4.5
    CC .5

    Guess I will jump it up to 10 tonight and see what the AM brings.
    24 ft round AG 12,700 gal. vinyl
    Doughboy Sequel II Rotary DE filter
    TF-100 test kit. 1st full season

  5. Back To Top    #5

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    May 2016
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    Swansea MA
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    62

    Re: confusing results pool calc check

    Added 86oz of 10% bleach to get to FC 10 let the filter run 45 mins and over shot again
    Now
    FC 13
    CC .5

    We will see what the AM brings. On a side note I have a DE filter and haven't seen any pressure increase yet this year. Just a theory but what if the organics are in the DE? The water remains crystal clear since I pulled off the cover. Am i just ultra paranoid?
    24 ft round AG 12,700 gal. vinyl
    Doughboy Sequel II Rotary DE filter
    TF-100 test kit. 1st full season

  6. Back To Top    #6

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    May 2016
    Location
    Swansea MA
    Posts
    62

    Re: confusing results pool calc check

    testing this AM:
    FC 12.5
    CC .5
    Looks like I am good. Should I stop being so paranoid when CC are up on any given 1 day? Should I trust what I see more than the tests? Like cloudy rainy days causing higher CC or crystal clear water with no slimy feelings and no chlorine smell? I mean i read here all the time every pool is different. Most days my CC is .5 or lower some days are elevated. Could this just be how my pool acts? I just don't want to SLAMing for no other reason then I want to try it. LOL
    24 ft round AG 12,700 gal. vinyl
    Doughboy Sequel II Rotary DE filter
    TF-100 test kit. 1st full season

  7. Back To Top    #7

    Join Date
    Sep 2015
    Location
    Rome, NY
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    360

    Re: confusing results pool calc check

    Maybe you should manually calculate your gallons. I did it to mine using a tape measure for D and it came out to be 2000 or so gallons less than what I thought.
    Pool installed 8/2015. 30' round Radiant pool. 21,000 gallons. 200# sand. Hayward Vari flow XL valve. 1.5hp Hayward Power-Flo Matrix running 10 hours/day in two periods. TF100 with speed stir. Sun all day, south side of house
    Order test kit TF-100 w/ Speed Stir and then Poolmath Calculator --- RECOMMENDED LEVELS --- POOL SCHOOL --- Algae? --- Chlorine/CYA CHART.

  8. Back To Top    #8

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    May 2016
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    Re: confusing results pool calc check

    Took that advise Doc and walked around in the pool with a tape measure today. My depth goes from 46" in one deep spot to 44" in a shallower spot. Average of 45" inches of most the pool. That is an 800 gallon difference. Not huge put still a difference.
    Thanks
    24 ft round AG 12,700 gal. vinyl
    Doughboy Sequel II Rotary DE filter
    TF-100 test kit. 1st full season

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