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Thread: Chlorine ppm question???

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    new2pools's Avatar
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    Chlorine ppm question???

    HI everyone!

    A little late opening (first opening, btw) this year. Went on vaca and just got back so pool time!

    Took the cover off, water was crystal clear with only a bit of stuff on the bottom, until some of the funk from the cover got into the pool (that is a whole OTHER story! ...of which we will do SOOOO differently next season!) So, anyway, the green junk mixed in with the water and turned it a milky pale green. I put in 6 large jugs of Clorox today and checked the ppm about 3 hours later. It is around 18 ppm.

    Is that high enough? Also, how long do I need to keep it at that level?

    And, lastly, where can I re order things for my pool kit? (I ordered from someone on here I think) I'm out of the CYA part.

    Thanks!!!!
    27' Round AGP, 17200 GAL, 2 HP/2 SPD Pump/Cartridge Filter.......BBB!

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    Re: Chlorine ppm question???

    IMO - you probably didn't need to go that high, but a little more is better than a little less
    The link to the TF kit is here

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    Luv& Luk
    -Ted

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

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    JasonLion's Avatar
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    Re: Chlorine ppm question???

    It really depends on your CYA level. Higher CYA levels require higher FC levels. Take a look at this pool school article.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Chlorine ppm question???

    You want to keep it at shock levels until you don't lose more than 1ppm of fc overnight.

    Randy
    25,000 gal fiberglass pool, Raypak 200k BTU H200FDN gas heater, Pentair CCP520 520 sq ft Cart filter, Max-Flo VS2303VSP pump. iWave wireless remote,

    seperate spa, with own pump, cartridge filter, Hayward H200FDN heater

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    new2pools's Avatar
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    Re: Chlorine ppm question???

    Can't check my CYA as I'm out of that one. Will have to reorder asap.

    I will check my ppm levels tonight and first thing in the morning to see what they've dropped.

    Also, the pool is nice and blue again but not clear. Even whatever that little bit of stuff all over the bottom was is gone which is great....but the water is not clear. How long will that take? Any idea?
    27' Round AGP, 17200 GAL, 2 HP/2 SPD Pump/Cartridge Filter.......BBB!

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    new2pools's Avatar
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    Re: Chlorine ppm question???

    Okay, went ahead and checked my ppm levels. (sun is on the pool but I plan to check later on this evening and first thing in morning also)

    My levels went from 18 last night to 7.5 today! wow. Also, since earlier this morning I noticed the pool looks a bit clearer so that is good. I went ahead and added 2 more large jugs of bleach. Will check the levels tonight and tomorrow to see how much is lost overnight, if any.

    Okay, other levels.....

    ph is 7.2
    TA is 80
    The TA is low right? Last year's numbers were in the 120-130's. Didn't have any marked that low last year. Should I raise that up a bit? Borax, right?

    Also, last year I struggled to keep my chlorine in the pool. I forget, what is it I can add to help keep the chlorine in the pool (to help keep the sun from taking it all out) I know I will have to keep my chlorine levels a bit higher with that than I did last year but I just got so tired of constantly having to add clorox all the time.
    27' Round AGP, 17200 GAL, 2 HP/2 SPD Pump/Cartridge Filter.......BBB!

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    Re: Chlorine ppm question???

    Borax is used to raise your ph. CYA or stabilizer is used as a buffer for chlorine so the sun doesn't burn it off as quickly. You need to read the info in Pool School. There is a wealth of information in there. Hope this helps
    18' x 36' inground vinyl liner 300# sand filter Blue Diamond Robot Cleaner BBB method

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    new2pools's Avatar
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    Re: Chlorine ppm question???

    That's right!! I remember now. I read all that last year but it seemed to evaporate from my brain just like the chlorine from my pool. I'm off to read some more. Maybe by next year (2 years with a pool) I'll have it all down.
    27' Round AGP, 17200 GAL, 2 HP/2 SPD Pump/Cartridge Filter.......BBB!

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    new2pools's Avatar
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    Re: Chlorine ppm question???

    Okay, fc ppm went from 9.5 to 7.5 first thing this morning.
    27' Round AGP, 17200 GAL, 2 HP/2 SPD Pump/Cartridge Filter.......BBB!

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    JasonLion's Avatar
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    Re: Chlorine ppm question???

    You are making good progress, but you still need more chlorine. You aren't done shocking yet.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    new2pools's Avatar
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    Re: Chlorine ppm question???

    Okay, didn't get a chance to add any bleach yesterday and last night it was 3.0ppm so I guess the sun really took it out since the early morning reading of 7.5. This morning it was 2.5ppm so I only lost .5 overnight last night. I'm going to bring it back up today though anyway. Water is crystal clear and looks good too.

    Got my re-order supplies for my test kit already! That was so quick!
    27' Round AGP, 17200 GAL, 2 HP/2 SPD Pump/Cartridge Filter.......BBB!

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