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Thread: Test Results - what to do first?

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    Test Results - what to do first?

    Hey,
    This is year 2 of opening our pool and I still feel like I don't know much! We probably didn't close our pool properly because we opened it up and had another big mess this year. I'll have to follow up with questions about that in the fall. Anyhow, as for this year... we have been working on shocking our pool, scrubbing the walls, and doing some vacuuming to get it cleaned up. Here are our levels as of today:

    FC- 12
    pH- 7.2
    CC- 1
    TC- 13
    TA- 110
    CH- 140
    CYA- 22

    What should we be doing besides continuing to keep the pool at shock level? The water looks pretty cloudy and murky.
    IG Concrete Pool 25,000 gallons
    Sta-Rite Cristal-Flo High Rate Sand Filter

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    Join Date
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    Re: Test Results - what to do first?

    Keep doing what you are doing. Shocking is in order as evidenced by your CC of > 0.5 ppm. Keeping fighting the good fight!

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    dmanb2b's Avatar
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    Re: Test Results - what to do first?

    Keep shocking, everything else is within or not too far out of range
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

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    Re: Test Results - what to do first?

    Should I work on getting the Calcium or CYA levels up?
    IG Concrete Pool 25,000 gallons
    Sta-Rite Cristal-Flo High Rate Sand Filter

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    Richard320's Avatar
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    Re: Test Results - what to do first?

    Quote Originally Posted by trishalinn
    Should I work on getting the Calcium or CYA levels up?
    If you have a vinyl pool, you don't need to worry about low CH. If you have a concrete pool, you do. But those can wait until the algae battle is over. They're easy to fix.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Butterfly's Avatar
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    Re: Test Results - what to do first?

    Quote Originally Posted by trishalinn
    Should I work on getting the Calcium or CYA levels up?
    I agree, you are fine now for shocking so concentrate on the shocking. Work on those other things later....
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  7. Back To Top    #7

    Re: Test Results - what to do first?

    Alright, we have been shooting for a shock level of 12... is this about right or should I increase this?
    We tested the chlorine levels this AM and this is what we got
    FC- 11
    CC - 0

    The water is still looking awfully murky, wondering if I'm doing something wrong or if we just need to be patient. It just doesn't seem like the water is clearing up this year like it did last year.
    IG Concrete Pool 25,000 gallons
    Sta-Rite Cristal-Flo High Rate Sand Filter

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    JasonLion's Avatar
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    Re: Test Results - what to do first?

    With CYA around 10 to 20 shocking to 12 is fine.

    How has the filter been behaving? Have you cleaned/backwashed the filter recently?

    Cleaning up algae does take a while. You should see a visible improvement each day. If you don't see day to day improvement there may be something we are missing.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: Test Results - what to do first?

    As far as I can tell (my husband has been doing most of the hands on stuff this year as I just had twins a week and a half ago), the filter seems to be doing fine. I had him backwash today. How often should we be backwashing? Is there a way to tell when to backwash?

    I guess we'll keep checking chlorine levels and make sure everything is up to shock levels... hopefully we'll get the pool cleared up soon!
    IG Concrete Pool 25,000 gallons
    Sta-Rite Cristal-Flo High Rate Sand Filter

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    Richard320's Avatar
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    Re: Test Results - what to do first?

    Quote Originally Posted by trishalinn
    As far as I can tell (my husband has been doing most of the hands on stuff this year as I just had twins a week and a half ago), the filter seems to be doing fine. I had him backwash today. How often should we be backwashing? Is there a way to tell when to backwash?

    I guess we'll keep checking chlorine levels and make sure everything is up to shock levels... hopefully we'll get the pool cleared up soon!
    There's a pressure gauge on the filter (hopefully) that will indicate when it's time. Note the reading when the filter is clean, and when it gets 10 psi above, backflush. Some gauges have a ring you can move, so you don't need to remember the clean pressure. If yours doesn't, use a sharpie or magic marker, or stick a piece of tape, something. The other clue is when the flow is noticeably lower than you're used to.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Test Results - what to do first?

    The pressure gauge hasn't been up, but my husband did backwash today anyhow. I am hoping that will help because the water doesn't seem like it's been clearing up near as quickly this year as it did last year! We're finally getting some warmer weather here in MI too, so it would be nice to have a useable pool soon
    IG Concrete Pool 25,000 gallons
    Sta-Rite Cristal-Flo High Rate Sand Filter

  12. Back To Top    #12

    Re: Test Results - what to do first?

    Alright, what could we be missing? It doesn't appear as if there's been any improvement. We are keeping the chlorine up at shock level (checking multiple times a day, but only needs chlorine added once in the late afternoon/early evening). We've backwashed. Not sure what else to do. Any ideas?
    IG Concrete Pool 25,000 gallons
    Sta-Rite Cristal-Flo High Rate Sand Filter

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    Re: Test Results - what to do first?

    It can take a week or more to clear a pool I wouldn't say your situation is unusual. Can you post another set of numbers, and possibly some pictures?
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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    Mod Squad Bama Rambler's Avatar
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    Re: Test Results - what to do first?

    Run the OCLT tonight and let us know the results in the morning. We'll figure out what you should do from that.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Re: Test Results - what to do first?

    Alright, going to run the overnight test tonight and I'll get those results to you in the morning. In the meantime another question and some pictures of the pool.
    My husband just notified me that the last time he backwashed (yesterday) when he turned it back onto filter, it appeared that the jet was blowing out dirty water. Could this be part of our problem? Is there something we're doing wrong when we backwash... maybe backwash for a longer period of time? Another thing we've wondered is if we ought to change the sand in our filter since we have no idea how long it's been in there.

    Thanks so much for your help!
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    IG Concrete Pool 25,000 gallons
    Sta-Rite Cristal-Flo High Rate Sand Filter

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    Mod Squad Bama Rambler's Avatar
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    Re: Test Results - what to do first?

    Did he rinse for a bit before he put it back on filter?

    Backwashing a bit longer might help some.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: Test Results - what to do first?

    You might also consider Adding DE to Your Sand Filter.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
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  18. Back To Top    #18

    Re: Test Results - what to do first?

    FC last night was 12, this morning 11.5. CC- 0
    IG Concrete Pool 25,000 gallons
    Sta-Rite Cristal-Flo High Rate Sand Filter

  19. Back To Top    #19

    Re: Test Results - what to do first?

    The pool clarity does seem a bit better to me today too. Nothing dramatic, but a little bit better.
    IG Concrete Pool 25,000 gallons
    Sta-Rite Cristal-Flo High Rate Sand Filter

  20. Back To Top    #20
    Mod Squad Bama Rambler's Avatar
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    Re: Test Results - what to do first?

    That says you passed the OCLT except for the 'clear water' part. Remind us what type filter you have. (it'd be nice if you put that in your sig along with the rest of your equip.)

    Ok ok, I know it's a sand filter. You could try adding a little DE to it to see if it clears the pool faster. Or you could try some clarifier, though sometimes that works and sometimes it doesn't.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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