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Thread: Please help with targets.

  1. Back To Top    #1

    Join Date
    Jul 2012
    Location
    Bakersfield, CA
    Posts
    6

    Please help with targets.

    Here are my current readings:

    FC: 7
    CC: 0
    PH: 7.6
    TA: 100
    CH: 250
    CYA: 60
    Borates - Currently not using.

    I'm going to be draining and replacing water very soon to get my CYA down and start fresh. I've read through the pool school and am aware of the general targets. I'd like to know if they will serve me well or if I should adjust any up or down. My pool is plaster, about 15 years old, and has full sun most of the morning and all afternoon. Once I get everything back up and in line I would like to add borates as per the posts on this site. Any tips you might have on my proper targets would be appreciated. Please let me know if you need any additional info. Thanks!
    13,500 gallon 26' x 15' rectangle, 6' deep in center, plaster
    Wet Institute M330 Modufilter (3 cartridge) System, 1.5 hp pump
    Kreepy Krauler, No SWG
    Taylor K-2006 Test Kit
    Central California - Extreme heat in summer, very cold in winter.

  2. Back To Top    #2
    linen's Avatar
    Join Date
    Jul 2010
    Location
    Twin Cities, MN
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    8,649

    Re: Please help with targets.

    How does your water look?

    Your levels seem good to me. Even your cya is not too bad, in fact in areas like Arizona and parts of California (and other very southern places) that get direct sun all day, we actually suggest slightly higher levels then normal of 60-80. You just need to make sure that you keep your FC up appropriately.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

  3. Back To Top    #3

    Join Date
    Sep 2012
    Location
    Cypress, TX
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    63

    Re: Please help with targets.

    Honestly I think that looks pretty good. CYA could be lower but if I were in that situation I don't know if I would drain. Maybe see how the chlorine demand is in the first few weeks of summer and then drain a little at a time if needed? I did borates recently and went with Boric Acid. Very straight forward using the pool calculator.
    18,000 Gallon IG, Pebble Sheen, Quartzite coping
    Pentair 420 Cartridge Filter, 2HP Silencer, 400,000 BTU Heater, Platinum Legend Cleaner
    2x IntelliFlo VS pumps - Screenlogic Interface - Stenner 45MPHP10 15 Gal Bleach Injection
    TF100 + PoolCalculator + This Site!

  4. Back To Top    #4

    Join Date
    Apr 2012
    Location
    SW Ohio
    Posts
    456

    Re: Please help with targets.

    It looks fine to me, how r u chlorinating your pool and how does the water look?
    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

  5. Back To Top    #5

    Join Date
    Jun 2011
    Location
    Long Beach, CA
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    2,671

    Re: Please help with targets.

    Being in Bakersfield I'd say your levels are fine. If your chlorine source has CYA in it, then you will want to lower your CYA so it doesn't get too high. If you are using liquid chlorine, I'd leave the pool as it is.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

  6. Back To Top    #6

    Join Date
    Jul 2012
    Location
    Bakersfield, CA
    Posts
    6

    Re: Please help with targets.

    Thanks so much for the great, and fast, information! I'm using liquid chlorine so no additional CYA there. My water looks good. I was curious about which way is more economical as far as buying more or less chlorine, having a low CYA which is less "stabilized" but not having to keep such a high chlorine level in the pool, or keeping my higher CYA figure which keeps the water more stabilized but having to keep a higher amount of chlorine in the water. Any idea which approach would have me buying less chlorine? Lastly, from what I saw, the recommended TA for a plaster pool pool is in the 70 - 90 range. Mine is at approx 100-110. Should I work on getting that down around 80? Thanks again!
    13,500 gallon 26' x 15' rectangle, 6' deep in center, plaster
    Wet Institute M330 Modufilter (3 cartridge) System, 1.5 hp pump
    Kreepy Krauler, No SWG
    Taylor K-2006 Test Kit
    Central California - Extreme heat in summer, very cold in winter.

  7. Back To Top    #7

    Join Date
    Sep 2012
    Location
    Cypress, TX
    Posts
    63

    Re: Please help with targets.

    Bringing down your TA will help if you are having pH fluctuations. Head over to the poolcalculator and type in your current readings, then enter your target and you can see the variation on the CSI. As long as your CSI is slightly negative you are in good shape. With that being said I like to keep my TA low as my calcium is a little high. How old is the pool? That is one factor that may affect changes in readings if the finish is still curing.

    Regarding the bleach, I will have to defer to longer term BBB'ers on that.

    Are you manually adding the bleach or do you use an automated system (Liquidator, Stenner pump, Autochem etc)?
    18,000 Gallon IG, Pebble Sheen, Quartzite coping
    Pentair 420 Cartridge Filter, 2HP Silencer, 400,000 BTU Heater, Platinum Legend Cleaner
    2x IntelliFlo VS pumps - Screenlogic Interface - Stenner 45MPHP10 15 Gal Bleach Injection
    TF100 + PoolCalculator + This Site!

  8. Back To Top    #8

    Join Date
    Jun 2011
    Location
    Long Beach, CA
    Posts
    2,671

    Re: Please help with targets.

    If you are having to add acid more often than you would like to, then lower TA to the 70-90 range. If your pH is stable, then you don't have to adjust the TA lower. Some pools have their pH locked in almost all summer long and add very little acid. A lot depends on the fill water and how old their plaster is.

    I believe a 2 ppm loss of chlorine a day is a decent amount during the summer. Monitor your usage and use the 2 ppm loss a day as a reference. If you are losing more than that, then we could investigate some more.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

  9. Back To Top    #9

    Join Date
    Jul 2012
    Location
    Bakersfield, CA
    Posts
    6

    Re: Please help with targets.

    According to the pool calculator, my CSI is -0.17 so that looks ok, right? My plaster pool is about 15 years old. I manually pour in the liquid chlorine. I very rarely have to add acid, the PH is very stable. From all your good advice, it appears my current targets are just fine. Thanks again!
    13,500 gallon 26' x 15' rectangle, 6' deep in center, plaster
    Wet Institute M330 Modufilter (3 cartridge) System, 1.5 hp pump
    Kreepy Krauler, No SWG
    Taylor K-2006 Test Kit
    Central California - Extreme heat in summer, very cold in winter.

  10. Back To Top    #10

    Join Date
    Jun 2011
    Location
    Long Beach, CA
    Posts
    2,671

    Re: Please help with targets.

    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

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