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Thread: New AGP Setup, but Water Appears to be Unbalanced After Test

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    New AGP Setup, but Water Appears to be Unbalanced After Test

    So I've had (signature) pool setup for about 3-4 weeks now, and I decided to get a OTO test kit at the local pool store.

    Based on about 1500 gallons, I've had the SWC set to run for an hour every day.

    Yesterday, at 4pm, I tested the water and got 0.5 TC (maybe lower), and my pH was 8.2 (maybe higher).

    I switched on the SWC and set it to run for 2 hours. About an hour later, I did the test again, with the exact same results.

    The SWC seems to be happy with the salt content (40#'s), and I see the cloudy water that goes by the clear tube when it switches on, so it seems like it is working.

    I have put zero chemicals in the water since I opened the pool, as before I found TFP, I was unaware that I needed to do anything else except run the SWC every day.

    I have a K-2006 coming, but until then, I'm left with just the basic kit.

    Should I first be adding Muraitic acid to lower the pH?

    Is it weird that I see almost zero chlorine, but haven't had problems with things growing in the water?
    1,720 Gallon Intex 12' x 30" Metal Frame AGP w/ 1-1/2" Retrofit Intake/Exhaust | Intex SWCG w/ 2,800 GPH Sand Filter Pump controlled with Aube TI062/U Timer

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    Re: New AGP Setup, but Water Appears to be Unbalanced After

    You need to bring the FC up with bleach first then the SWCG will be able to keep it up if working properly.
    Have you read: http://www.troublefreepool.com/pool-...ary_pool_guide
    Can you post a complete set of test results?

    FC
    CC
    CYA
    PH
    CH
    TA
    18' x 42" Intex (4786 Gal @ 80% capacity) Intex 8110 SWCG, 2000 GPH cartridge filter.
    Full Sun, Well Water, Borates at approx. 50
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    New AGP Setup, but Water Appears to be Unbalanced After Test

    Will start with the bleach first, until the more comprehensive test kit gets here.

    So should I be shooting for 4ppm for FC? Since my basic kit only reads TC, can I just assume that since my TC seems to be almost non-existent, that it equals my FC, and go with adding 11oz of bleach that TPC recommends for an FC of 0.5ppm?
    1,720 Gallon Intex 12' x 30" Metal Frame AGP w/ 1-1/2" Retrofit Intake/Exhaust | Intex SWCG w/ 2,800 GPH Sand Filter Pump controlled with Aube TI062/U Timer

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    aa62579's Avatar
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    Re: New AGP Setup, but Water Appears to be Unbalanced After

    Have you added any CYA / stabilizer yet?
    ~~ Allison ~~
    Intex 18' x 48" Easy Set Pool, approximately 5455 gallons
    Krystal Clear 1500 GPH Filter Pump Model 56635EG - 635 with Auto Timer
    BBB FOR BEGINNERS ~ THIS IS A MUST READ FOR ANYONE OVERWHELMED!!

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    New AGP Setup, but Water Appears to be Unbalanced After Test

    Nope, not yet. A friend told me about these pools, and setting them up with the SWCG, but said he didn't do anything to the water. It wasn't until I started reading here that I thought he was probably wrong, then bought a test kit, and confirmed it.

    So bleach and the acid to bring the pH down, the cya?
    1,720 Gallon Intex 12' x 30" Metal Frame AGP w/ 1-1/2" Retrofit Intake/Exhaust | Intex SWCG w/ 2,800 GPH Sand Filter Pump controlled with Aube TI062/U Timer

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    aa62579's Avatar
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    Re: New AGP Setup, but Water Appears to be Unbalanced After

    You aren't going to be able to hold any FC during the day until you get some CYA in there.
    ~~ Allison ~~
    Intex 18' x 48" Easy Set Pool, approximately 5455 gallons
    Krystal Clear 1500 GPH Filter Pump Model 56635EG - 635 with Auto Timer
    BBB FOR BEGINNERS ~ THIS IS A MUST READ FOR ANYONE OVERWHELMED!!

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    Richard320's Avatar
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    Re: New AGP Setup, but Water Appears to be Unbalanced After

    Quote Originally Posted by geogecko
    Nope, not yet. A friend told me about these pools, and setting them up with the SWCG, but said he didn't do anything to the water. It wasn't until I started reading here that I thought he was probably wrong, then bought a test kit, and confirmed it.

    So bleach and the acid to bring the pH down, the cya?
    Add acid to lower pH first - because bleach works better at a lower pH. Give that half an hour of run time to mix. While that half hour timer is running, measure out your stabilizer (CYA), tie it in an old sock, and tie that so it dangles in front of the return jet. Then add the bleach and let that mix for a while with the pump running. Brushing is always a good idea, it cleans the walls, mixes chemicals, and gets any silt off the floor and into circulation where the filter can grab it.
    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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    New AGP Setup, but Water Appears to be Unbalanced After Test

    Got it, so acid, then bleach, then stabilizer, all preferably in the same day?

    If I've never added cya (or anything else to the tap water), is it safe to assume it is zero in the calculator?
    1,720 Gallon Intex 12' x 30" Metal Frame AGP w/ 1-1/2" Retrofit Intake/Exhaust | Intex SWCG w/ 2,800 GPH Sand Filter Pump controlled with Aube TI062/U Timer

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    New AGP Setup, but Water Appears to be Unbalanced After Test

    Ok, added 2oz of Muriatic acid, 17oz bleach, and have a sock of 10oz (volume) hanging in front of the return port.

    An hour after I added, I now have pH at 7.2, and chlorine at least 5ppm!

    Looks like I'm on my way, waiting for my test kit (FAS-DPD), and I'll post my numbers.

    For the CYA, I just assumed 0, and added enough stabilizer to get me to 50, so I'll add more to get to 70 when I do the test.
    1,720 Gallon Intex 12' x 30" Metal Frame AGP w/ 1-1/2" Retrofit Intake/Exhaust | Intex SWCG w/ 2,800 GPH Sand Filter Pump controlled with Aube TI062/U Timer

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    Re: New AGP Setup, but Water Appears to be Unbalanced After

    Cya can take up to a week to show up on the test. So be careful you don't overshoot you goal......Mike
    18x52 intex ultra frame pool 6981 gallons, 1 HP LL pump with 19 in sand filter,BBB method,borax 50ppm
    leslies DPD test kit + fas-dpd chlorine test kit + borates test strips
    thru wall skimmer,hard plumbed with 2 returns 1 1/2 sch 40 pvc
    1 large fountain 1 inch sch 40 pvc,shut off ball valves on all

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    New AGP Setup, but Water Appears to be Unbalanced After Test

    Thanks for pointing that out! It actually dissolved already, which surprised me, because I kept reading that it could take a week, so maybe that's what they meant by the week... Guess I'll wait until next Sunday to test that then.
    1,720 Gallon Intex 12' x 30" Metal Frame AGP w/ 1-1/2" Retrofit Intake/Exhaust | Intex SWCG w/ 2,800 GPH Sand Filter Pump controlled with Aube TI062/U Timer

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    New AGP Setup, but Water Appears to be Unbalanced After Test

    Ok, wow, these FASDPD kits are awesome! So, I did this testing this evening, around 9:30, when the family had all gotten out of the pool, and before the SWCG had run for the day (I know, I need to get it on a noon schedule).

    FC 2
    CC 1
    pH 7.6
    TA 110
    CH 140
    CYA 40
    NaCl 3600

    So I probably need to get the chlorine up immediately, and still get more CYA in there. I made the mistake of rinsing the cartridge filter about two hours after the CYA had dissolved, but it looks like most of it is in the water, because I was shooting for 50.

    My TA looks a bit high too, what do you use to bring that down?
    1,720 Gallon Intex 12' x 30" Metal Frame AGP w/ 1-1/2" Retrofit Intake/Exhaust | Intex SWCG w/ 2,800 GPH Sand Filter Pump controlled with Aube TI062/U Timer

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    Re: New AGP Setup, but Water Appears to be Unbalanced After

    If a bunch of people just got out of the pool, I wouldn't get too excited about 1 CC. Yes, you need to get some FC in the water, that's what the SWCG is for, right?

    CYA should be higher than that for a SWCG.

    pH and TA are fine right now. Each time you add acid to lower pH, you also will lower TA a tiny bit. pH will come back up, TA will stay down unless you add more via refilling. TA is the lastthing you play with. Save it until everything else is balanced, your water is sparkling, and you're bored.
    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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    New AGP Setup, but Water Appears to be Unbalanced After Test

    Ok, so for now, sounds like all I need to do is shoot for adding another 30ppm of CYA. I'll toss that in a sock tonight, and hope to have 70ppm after a few days. Maybe check the water again on Monday or Tuesday.

    Thanks for the help!
    1,720 Gallon Intex 12' x 30" Metal Frame AGP w/ 1-1/2" Retrofit Intake/Exhaust | Intex SWCG w/ 2,800 GPH Sand Filter Pump controlled with Aube TI062/U Timer

  15. Back To Top    #15

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    Re: New AGP Setup, but Water Appears to be Unbalanced After

    Added more CYA, now up to 80ppm.

    FC 1.5
    CC 0.5
    pH 7.6

    I'm wondering if just an hour on the SWCG is enough. I already ran it around 4pm, and took these test readings around 10pm. I just turned it back on, but for 2 hours this time. Hoping FC will be up to at least 3ppm in the morning...otherwise, do I need to add bleach?
    1,720 Gallon Intex 12' x 30" Metal Frame AGP w/ 1-1/2" Retrofit Intake/Exhaust | Intex SWCG w/ 2,800 GPH Sand Filter Pump controlled with Aube TI062/U Timer

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    Richard320's Avatar
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    Re: New AGP Setup, but Water Appears to be Unbalanced After

    Quote Originally Posted by geogecko
    Added more CYA, now up to 80ppm.

    FC 1.5
    CC 0.5
    pH 7.6

    I'm wondering if just an hour on the SWCG is enough. I already ran it around 4pm, and took these test readings around 10pm. I just turned it back on, but for 2 hours this time. Hoping FC will be up to at least 3ppm in the morning...otherwise, do I need to add bleach?
    Is the water clear?

    If so, I'd hold off with the bleach - but keep it around for quick responses. It will just confuse things as you try to find the right settings for your SWG.
    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!

  17. Back To Top    #17

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    Re: New AGP Setup, but Water Appears to be Unbalanced After

    Thank you. I ran it for 2 hours last night, then this morning had:

    FC 4
    CC 0.5

    So that should be fairly decent, I would think? The water is awesome looking, got in it today after mowing the yard, and it felt amazing.

    I let it run another hour or so around noon, and the family is going to go swimming later this afternoon, then I plan on measuring the chlorine early evening, to see where we stand... Think I'm finally getting close! Thanks for the help, Richard.
    1,720 Gallon Intex 12' x 30" Metal Frame AGP w/ 1-1/2" Retrofit Intake/Exhaust | Intex SWCG w/ 2,800 GPH Sand Filter Pump controlled with Aube TI062/U Timer

  18. Back To Top    #18

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    Re: New AGP Setup, but Water Appears to be Unbalanced After

    Decided to do the OCLT just to make sure I am not having an issue. From what I can tell, things look good, so I'm open to what I should do from here, or am I done, except for maintenance?

    9:15pm
    FC: 5.2ppm
    CC: 0.4ppm

    5:00am
    FC: 4.4ppm
    CC: 0.2ppm

    So I lost:
    FC: 0.8ppm
    CC: 0.2ppm

    That was without the SWCG running In between testing. Does that look like the water is okay, as far as anything growing in it?
    1,720 Gallon Intex 12' x 30" Metal Frame AGP w/ 1-1/2" Retrofit Intake/Exhaust | Intex SWCG w/ 2,800 GPH Sand Filter Pump controlled with Aube TI062/U Timer

  19. Back To Top    #19
    Mod Squad Bama Rambler's Avatar
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    Re: New AGP Setup, but Water Appears to be Unbalanced After

    That's technically passing the OCLT but it's so close that being how I am, if it were me, I'd run it once more tonight just to be sure. I'm sure you'll be fine but it never hurts to be sure.
    Dave J. TFP Moderator
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    Re: New AGP Setup, but Water Appears to be Unbalanced After

    Thanks, Bama, I'm going to give it a try again this weekend, but it seems like now that I got a high cya level in the water, and my FC has been staying around 4-5, that the black/green stuff that I was having to vacuum every two days is gone.

    I bought an outdoor digital timer (Honeywell) that will allow me to always have the SWCG run at the same time everyday, even after vacuuming, so hopefully that will help.
    1,720 Gallon Intex 12' x 30" Metal Frame AGP w/ 1-1/2" Retrofit Intake/Exhaust | Intex SWCG w/ 2,800 GPH Sand Filter Pump controlled with Aube TI062/U Timer

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