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Thread: New with pool balancing issues

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    Join Date
    Jun 2015
    Location
    Erie, PA
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    New with pool balancing issues

    Hello! This is a great website - I am currently trying to convert from buying chemicals from the pool store to on our own with this websites help! We currently are using the sustain pool products and I just tested the pool with the following readings:
    FC 7.5
    CC 2.5
    TC 10
    Calcium Hardness 925
    TA 170
    CYA 40
    Borate 15
    pH 8.2

    we just added the sustain chemicals on Thursday and after these readings we added 32 ounces of hth metal control and will plan to recheck tomorrow the TA and calcium hardness. Are we on the right track?? Thanks for any help!
    Oasis 18x32 Vinyl Inground 16,100 gallons 3.5 to 6.5 depth
    Kafko steel walls/Vanquish cleaning system/Installed May 2011
    Jandy sand filter with Hayward universal H series H250FDN gas heater (new heater installed 7/2015),90" Traic spillover spa/Wildride slide
    TF 100 pool test kit

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    Arab, Alabama
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    Re: New with pool balancing issues

    Hello and welcome to TFP! We can get you fixed up without problems! I would stop adding anything to your pool other than what is recommended here. Typically you will use only bleach, muriatic acid and a few others. Can you tell us what your water looks like, is it clear?
    39YO 13K gallon former SWAMP/MONEY PIT, concrete bottom/Fiberglass Walls, Ecotech VS pump, Hayward Sand Filter, Dolphin DX5 Plus, Loop-Loc safety cover and YES, I have a TFT-100 test kit!

    Shock Level and Maintain - CL/CYA Chart

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    Earl Cox's Avatar
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    Re: New with pool balancing issues

    Welcome you are in the right place I recently joined TFP and I can tell you the help I get here it's priceless. We will get your pool straight just follow our method. As PADucks mentioned stop adding this chemicals. I notice you have the TF-100 awesome. Your CH and TA is very high. What does your water look like is it clear?
    6280 Gal Intex 17' x 52" Metal Frame AG
    2500 GPH Filter Pump
    Intex Krystal clear SWG
    Taylor K-2005 With FAS-DPD Drop TEST KIT And Speedstir
    Intex Robot Pool Cleaner

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    Re: New with pool balancing issues

    Hello jaduck and Earl,
    Yes the pool is crystal clear! Thanks!
    Oasis 18x32 Vinyl Inground 16,100 gallons 3.5 to 6.5 depth
    Kafko steel walls/Vanquish cleaning system/Installed May 2011
    Jandy sand filter with Hayward universal H series H250FDN gas heater (new heater installed 7/2015),90" Traic spillover spa/Wildride slide
    TF 100 pool test kit

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    Re: New with pool balancing issues

    Thanks! Most concerning right now would be your pH and the CC. The CC can indicate organics in your pool. Even though your pool is clear you could have some organics in your pool. I would bring your pH level down to around 7.5 using muriatic acid. You can use Pool Math to calculate the amount of acid needed to get to a target of 7.5 from 8.2. Your pH could be higher as the kit only reads to 8.2. In order to rule out organics I would perform an Overnight Free Chlorine Loss Test (see Pool School). After you perform the OCLT we can worry about the TA and CH.
    39YO 13K gallon former SWAMP/MONEY PIT, concrete bottom/Fiberglass Walls, Ecotech VS pump, Hayward Sand Filter, Dolphin DX5 Plus, Loop-Loc safety cover and YES, I have a TFT-100 test kit!

    Shock Level and Maintain - CL/CYA Chart

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    Re: New with pool balancing issues

    Quote Originally Posted by jaduck View Post
    Thanks! Most concerning right now would be your pH and the CC. The CC can indicate organics in your pool. Even though your pool is clear you could have some organics in your pool. I would bring your pH level down to around 7.5 using muriatic acid. You can use Pool Math to calculate the amount of acid needed to get to a target of 7.5 from 8.2. Your pH could be higher as the kit only reads to 8.2. In order to rule out organics I would perform an Overnight Free Chlorine Loss Test (see Pool School). After you perform the OCLT we can worry about the TA and CH.

    Ok should I get the ph down first with the acid then do the oclt test? Or other way around? Since I dont have a SWG should I use dry acid or still ok to use liquid? We have used lo n slo in past from pool store and it never got the ph to stay down. I also have hth ph minus? Will that work? Sorry we have spent alot of money on these chemicals and want to be able to use them up if all possible if I cant return them thanks��
    Oasis 18x32 Vinyl Inground 16,100 gallons 3.5 to 6.5 depth
    Kafko steel walls/Vanquish cleaning system/Installed May 2011
    Jandy sand filter with Hayward universal H series H250FDN gas heater (new heater installed 7/2015),90" Traic spillover spa/Wildride slide
    TF 100 pool test kit

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    Re: New with pool balancing issues

    You can't do an OCLT test as you fail right out of the gate with a CC of 2.5. It needs to be .5 or less. I would add acid to bring pH to 7.2 then wait 30 minutes then add bleach for a target FC of 16. Keep it at 16 until your CC drop to 0 then do an OCLT.
    18' x 38' Pool, 3' to 8' Depth
    Vinyl Liner
    SWG
    Variable Speed Pump
    Sand Filter

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    Re: New with pool balancing issues

    Ok will drop the pH first and then retest and go from there. Will keep updating this with hopefully some forward progress! Thanks!
    Oasis 18x32 Vinyl Inground 16,100 gallons 3.5 to 6.5 depth
    Kafko steel walls/Vanquish cleaning system/Installed May 2011
    Jandy sand filter with Hayward universal H series H250FDN gas heater (new heater installed 7/2015),90" Traic spillover spa/Wildride slide
    TF 100 pool test kit

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    Re: New with pool balancing issues

    I'm sorry, Robert is correct! You would fail because a 2.5 CC means you have organics in the water. Anyway, with your water being clear you should have a short SLAM before your CC reaches 0 - 0.5...
    39YO 13K gallon former SWAMP/MONEY PIT, concrete bottom/Fiberglass Walls, Ecotech VS pump, Hayward Sand Filter, Dolphin DX5 Plus, Loop-Loc safety cover and YES, I have a TFT-100 test kit!

    Shock Level and Maintain - CL/CYA Chart

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    Re: New with pool balancing issues

    Quote Originally Posted by jaduck View Post
    I'm sorry, Robert is correct! You would fail because a 2.5 CC means you have organics in the water. Anyway, with your water being clear you should have a short SLAM before your CC reaches 0 - 0.5...
    Hello!
    today's numbers:

    calcium 775
    TA 120
    Borate 15
    Cl 1-2
    Ph 7.5

    Is the next step to add bleach to get chlorine up? Then? Thanks for everybody's help!!
    Oasis 18x32 Vinyl Inground 16,100 gallons 3.5 to 6.5 depth
    Kafko steel walls/Vanquish cleaning system/Installed May 2011
    Jandy sand filter with Hayward universal H series H250FDN gas heater (new heater installed 7/2015),90" Traic spillover spa/Wildride slide
    TF 100 pool test kit

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    Re: New with pool balancing issues

    Yes but you have to be more diligent...you can't let fc drop so low. You need to be testing at a minimum every 4 hours...every two if you can. Everytime FC drops below shock level you are allowing algae to reproduce faster than you are killing it.
    18' x 38' Pool, 3' to 8' Depth
    Vinyl Liner
    SWG
    Variable Speed Pump
    Sand Filter

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    Re: New with pool balancing issues

    You must bring up that FC! During the SLAM make sure you pump runs 24/7 and turn off your SWG if you have one. You should pour about 3 jugs of 8.5% bleach directly in front of a return. I would wait 30 minutes and test your FC. It should be at 16 or a little higher. Maintain that FC level of 16 by testing at least 2 times a day (4 is really my minimum) and not more than once per hour. If the FC drops below 16 add enough bleach to bring it back to 16. MAINTAIN that FC! When your CC reading is between 0 - 0.5 you can perform the OCLT. Follow the instructions for the OCLT found in the How To section of pool school. If you pass the OCLT you can start letting the FC drop to your target FC. I would target a FC of 7.

    Once you have made sure organics are gone we can work on your CA and TA.
    39YO 13K gallon former SWAMP/MONEY PIT, concrete bottom/Fiberglass Walls, Ecotech VS pump, Hayward Sand Filter, Dolphin DX5 Plus, Loop-Loc safety cover and YES, I have a TFT-100 test kit!

    Shock Level and Maintain - CL/CYA Chart

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    Re: New with pool balancing issues

    BTW, you can stop testing your TA, CA and pH. The pH is inaccurate at high FC levels. Also, the TA and CA are of no concern right now. Keep testing your FC and occasionally test the CC, maybe once every 4th time you test your FC.
    39YO 13K gallon former SWAMP/MONEY PIT, concrete bottom/Fiberglass Walls, Ecotech VS pump, Hayward Sand Filter, Dolphin DX5 Plus, Loop-Loc safety cover and YES, I have a TFT-100 test kit!

    Shock Level and Maintain - CL/CYA Chart

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