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Thread: Can you still swim when fc is high?

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    Can you still swim when fc is high?

    Sorry if this has been asked before! I am new and don't know my way around yet.

    I have a new (small) pool for my kiddos. I set it up last week, ordered the taylor2006 (it's not here yet, but using another brand until around Monday), filled it up and added beach and muriatic acid according to "Pool Math" to get the levels as close to correct as I can using my "bad" testing strips. (I didn't find this site until AFTER I set up the pool). I accidentally added too much bleach today (pool math said 24 oz and I added 36 oz) and the fc is now 10 (but could possibly be more since I am using strips right now). Is it safe to swim in? Oh,the ph is 7.8 and the CYA is 30. I should also mention that we mainly go nightswimming and I also keep the pool covered when not in use (as per city drought laws).

    Thanks in advance
    4,600 gallon quick-set above ground ring pool

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    Mod Squad YippeeSkippy's Avatar
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    Re: Can you still swim when fc is high?

    Now is a great time to look at Pool Math and input your pool specifics (# gallons at the top, current chem levels down the left side column, desired levels in the right side column, bottom of column tell program you want to follow TFP recommendations and how you get your chlorine) THEN see below that- there is a spot to ask the program "what happens if I put in 36 ounces of 8.25% bleach...?" and it will spit out the answer such as "36 ounces of 8.25% will raise your FC by x amount..."

    Give that a try, leave the cover off the pool to let the sun burn a bit off and go SWIMMING! (keep testing with your new kit when it arrives)
    My Amazon Smile for November12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
    Our pool build--> Our Pool Solved Our Sloping Yard Skippy's Cheap Pool Cooler -->Skippy's New Fountain

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    Re: Can you still swim when fc is high?

    I did the pool math and accidentally added too much bleach. I don't want to start adding things if they aren't necessary. I have read that chlorine goes down quickly over time, but I can't have the pool uncovered unless it is being used because of city drought laws. I guess I could take the chance and uncover, but there are monetary penalties if someone sees it uncovered without people in it. I just took another reading and the fc is STILL high. I am willing to wait until it goes down, but my kiddos aren't as patient, lol. I am just wondering if the fc will harm them?
    4,600 gallon quick-set above ground ring pool

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    Mod Squad YippeeSkippy's Avatar
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    Re: Can you still swim when fc is high?

    What is your FC now? Have you done a recent CYA test and what is the level?

    Have you bothered to delve into Pool School to learn how and why of Pool Care?

    Did you leave the cover open (maybe while relaxing outside in your bathing suit so you look to be using the pool) to help burn off some as previously suggested?

    Have you considered just draining some water out and replacing it with fresh?? Your pool is pretty small and you could use the water on the lawn and gardens...
    My Amazon Smile for November12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
    Our pool build--> Our Pool Solved Our Sloping Yard Skippy's Cheap Pool Cooler -->Skippy's New Fountain

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    Re: Can you still swim when fc is high?

    With CYA at 30 you can safely swim with FC levels up to 12.
    If you're concerned that FC might be higher than 12 then you could bump up the CYA a little.
    CYA 40 you can swim up to FC of 16
    CYA 50 you can swim up to FC of 20
    16' x 34' vinyl in ground - 16,500 gal.
    Hayward EC-75 DE filter with Hayward 1hp Super Pump
    TF-100XL Test Kit with SpeedStir

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    Re: Can you still swim when fc is high?

    Thanks Mike1162. That is the exact information I was looking for. My cya level is currently 30.

    Yippeeskippy- Yes, I read pool school and I also did the pool math before I even asked this question. After I set up the pool I decided to NOT do what all my friends and neighbors did and came across this site that seemed to be better than pouring tons of expensive stuff into the pool. I am a SAHM that is often alone for 18+ hours a day with my kids so my brain sometimes turns into mush (hence why I added too much bleach in the first place). My husband just wanted me to go get the stuff at a pool store but I thought this looked like a friendly, knowledgeable community that wouldn't make me feel stupid for not knowing things.

    We aren't even allowed to water the lawn except on certain days. Not only do I not want to get fined (for the pool being uncovered) but I actually believe in water conservation and actually feel guilty for having a pool, haha. Now that I know it's safe to swim in, we can go outside and I can leave it uncovered the whole time.
    4,600 gallon quick-set above ground ring pool

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    TFP Guide

    pabeader's Avatar
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    Re: Can you still swim when fc is high?

    What some Cali. folks have done is water the lawn and plants from the pool and then used the same amount of clean water into their pool. That way you are doing your conservation and getting the needed water for the pool.
    Bob - Palm Beach by San Juan Pools. approx 5000 gals., Pentair 320 cartridge filter (all new guts installed by me), Goldline SWG, 'New to me' Kreepy Krauly Sand Shark, Intermec 104 Timer Test kit: TF-100 w/Speed Stir

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    Divin Dave's Avatar
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    Re: Can you still swim when fc is high?

    If you're ever concerned about the FC level and not sure, the rule is that its safe to swim with FC up to 40% of your CYA level.
    easy rule to remember.

    enjoy,
    Quote Originally Posted by theinchworm View Post
    Sorry if this has been asked before! I am new and don't know my way around yet.

    I have a new (small) pool for my kiddos. I set it up last week, ordered the taylor2006 (it's not here yet, but using another brand until around Monday), filled it up and added beach and muriatic acid according to "Pool Math" to get the levels as close to correct as I can using my "bad" testing strips. (I didn't find this site until AFTER I set up the pool). I accidentally added too much bleach today (pool math said 24 oz and I added 36 oz) and the fc is now 10 (but could possibly be more since I am using strips right now). Is it safe to swim in? Oh,the ph is 7.8 and the CYA is 30. I should also mention that we mainly go nightswimming and I also keep the pool covered when not in use (as per city drought laws).

    Thanks in advance
    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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