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Thread: new pool startup

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    new pool startup

    Our pool is filling even as we speak. I wanted to check my numbers:

    pH 8+ (color was darker than 8.0)
    TA 140ppm
    CH 175ppm

    pool specs are in my sig.

    Targets
    FC 5 - 185 oz 6% bleach
    pH 7.2 67 oz 31.45% muriatic acid
    CYA 40 - 95 oz by weight of stabilizer
    17,800 gallon, IG pool, 595 sq feet (17x35x4.5 avg rectangle), Hayward 525 cartridge filter, diamondbrite, 2 hp 2 speed hayward tristar filter, Stenner 45mhp10 automatically chlorinating

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    Mod Squad jblizzle's Avatar
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    Re: new pool startup

    Add the type of pool in your signature (plaster? pebble? vinyl?).

    Your targets look pretty good and those 3 are the most important to adjust. You FC will disappear rapidly until the CYA gets dissolved and starts protecting it.

    What are you using to test your levels?
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: new pool startup

    Quote Originally Posted by jblizzle
    Add the type of pool in your signature (plaster? pebble? vinyl?).

    Your targets look pretty good and those 3 are the most important to adjust. You FC will disappear rapidly until the CYA gets dissolved and starts protecting it.

    What are you using to test your levels?
    diamondbrite, using the taylor test kit (similar to tf-100) taylor 2006 test kit
    17,800 gallon, IG pool, 595 sq feet (17x35x4.5 avg rectangle), Hayward 525 cartridge filter, diamondbrite, 2 hp 2 speed hayward tristar filter, Stenner 45mhp10 automatically chlorinating

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    Re: new pool startup

    I typically only test FC and pH, but today I decided to test TA and CH

    our pool was built in may 2012 and I am still having to add 32 oz of acid every day to keep the pH in line.

    Right now our CH is 620 and TA is 60

    pH is 7.4, FC tonight is 7.5

    Do I need to do anything about the CH or TA? What is interesting is if I have to drain because of CH, I might as well use pucks
    17,800 gallon, IG pool, 595 sq feet (17x35x4.5 avg rectangle), Hayward 525 cartridge filter, diamondbrite, 2 hp 2 speed hayward tristar filter, Stenner 45mhp10 automatically chlorinating

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    duraleigh's Avatar
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    Apr 2007
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    Re: new pool startup

    A quart of acid daily in an 18k pool is amazingly excessive. Something is amiss.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: new pool startup

    Quote Originally Posted by duraleigh
    A quart of acid daily in an 18k pool is amazingly excessive. Something is amiss.
    It didnt seem out of line since the pool is still pretty new.

    One thing is that right now the spa jets are always aerating the pool because of a pinhole leak in the air vent. Is that equivalent to a water feature?

    The second thing is that the water flowing into the spa constantly spills over the negative edge.

    There isnt a lot of splashing but it is a constant flow of water. The challenge is either water drains from the spa or the pool. So if I want water circulating to the spa it has to spill over the edge to exit.

    i was actually going to test decreasing the spa return rate to see if that helped. But when I decreased the spa return rate it increased the pressure on the pool returns enough that the polaris started to move all the time. I was going to change to the red restrictor disk but the polaris attachment wouldnt come off the wall.. haha cascading series of events.
    17,800 gallon, IG pool, 595 sq feet (17x35x4.5 avg rectangle), Hayward 525 cartridge filter, diamondbrite, 2 hp 2 speed hayward tristar filter, Stenner 45mhp10 automatically chlorinating

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