Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 5 of 5

Thread: Rain rain finally went away...now my pool

  1. Back To Top    #1

    Join Date
    Apr 2017
    Location
    Metairie, LA
    Posts
    23

    Rain rain finally went away...now my pool

    It's been storming for 2 days. Water still looks good but level really high. I took skimmer top off to let water drain from there. My levels aren't too bad ..
    FC. 2
    CC 0
    PH 7.8
    TA. 80

    My question is general one. Since following tfp advice I I have been able to keep pool levels ok if low. Only time I can get FC to higher than 2 is if I also add stabilizer. Should I just add that along with chlorine everyday? Or could that screw up something else?
    7600 Gallons
    AB
    Cartridge filter
    2 speed
    installed 5/2016

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    40,881

    Re: Rain rain finally went away...now my pool

    What is your CYA? That is what determines the level of FC you should be maintaining, see the FC/CYA Chart.

    Once the CYA is in range, you should not need to add it daily.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  3. Back To Top    #3

    Join Date
    Apr 2017
    Location
    Metairie, LA
    Posts
    23

    Re: Rain rain finally went away...now my pool

    Ok so I don't test for cya everyday.usually once a week and it's usually 30 or lower. Last time was yesterday it was 50. I don't feel comfortable verifying this...does the black dot supposed to completely disappear?
    Anyway that said I think I finally understand the FC/cya chart ! So does this mean my levels are good?
    7600 Gallons
    AB
    Cartridge filter
    2 speed
    installed 5/2016

  4. Back To Top    #4
    dsmith99's Avatar
    Join Date
    Jun 2016
    Location
    SW, Iowa
    Posts
    236

    Re: Rain rain finally went away...now my pool

    If you are using liquid chlorine you do not need to test CYA every week. The only way it is going to change is if you add cya or by adding a bunch of water. Once it's in the pool it really only lowers by dilution. I only test my CYA about once a month or if I get several inches of rain.

    Yes, if you continually add stabilizer you are going to have problems. That is the entire problem with using chlorine tablets or powder shock, it adds stabilizer with every dose. The stabilizer builds up and eventually reaches a level so high you can't reasonably add enough chlorine to keep the algae away.

    If your CYA level is moving up and down between tests it's likely a testing error. Maybe this video will help, from another post I think you have a K-2006.

    At a CYA of 50 you need FC of 4ppm minimum. You should be dosing your FC up to about 7ppm, that way as the chlorine is consumed through the day FC can stay at or above your minimum. It's best to test every day at about the same time, then add your daily dose, enough to reach your target level of 7ppm. The next day when you test near the same time of day, you should be at or above your minimum of 4ppm. I test and dose in the evening, that way the FC remains at higher strength for the most hours per day.

    You are either not adding enough chlorine or you have something consuming it. Try adding your chlorine dose, let the pool circulate for 30 minutes and test again. Using 8.25% bleach it should take about 56oz to get from 2ppm up to 7ppm in a 7600 gallon pool.

    Have you checked the label on your bleach to confirm the strength? Don't know where you get your chlorine but places like the dollar store have very weak bleach, often down around 3%.
    AGP 24' x 54" approx 14000 gal Full sun all day, Hayward 1.5 HP and EC50 D.E. filter
    Stenner 45MPHP10 10 gal/day fixed rate with intermatic ET1125C timer
    Dolphin E10 robotic cleaner, 330 gallon Tiger River Spa, Taylor K-2006C test kit

  5. Back To Top    #5

    Join Date
    Apr 2017
    Location
    Metairie, LA
    Posts
    23

    Re: Rain rain finally went away...now my pool

    This makes sense I think I need to add more chlorine and make sure it's at higher strength
    Going to Walmart for 10%
    Thanks!
    7600 Gallons
    AB
    Cartridge filter
    2 speed
    installed 5/2016

Posting Permissions

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