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Thread: CYA = 90ppm, pool store says no problem???

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    CYA = 90ppm, pool store says no problem???

    Hi,

    According to several pools stores in the Dallas / Fort Worth area, the legislature has restricted the sale of 12.5% Sodium Hypo to consumers. The pool store continues to sell my mother Trichloro or DiChloro in power form for shocking the pool since she has mustard algae. As of today her CYA = 94 so I called her local pool store to see if they sell Cal-Hypo or liquid (turns out I found liquid chlorine 11% at the local orange big box). While speaking to the owner of the pool store, I asked him what target levels of CYA do they recommend to their customers. His response was 50-90 due to the extreme heat and sun we have in Texas. I asked him at what point does CYA get so high that you recommend a partial drain and fill, his reply 120ppm.

    I am not buying into this because I'm a faithful BBB practitioner although I do live in NY with very different weather than Texas. Anyone ever hear of pool stores recommending these CYA levels in states that have extreme heat, anyone run their southern pools this high? I'm telling mom she needs to be at 40-45 at the most, I run my pool at 30 ppm CYA.

    Feedback is greatly appreciated! Thanks !

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    Christian's Avatar
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    Re: CYA Levels Recommended by Pool Store

    Most pool store employees have no clue how CYA actually works. I'd stick with BBB standards and you'll have a much better result!

    P.S.: Whatever you do don't try to use a combination of BBB and pool store techniques. Worst thing you can do for your pool is try to combine two different methods because then neither will work!

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    Mod Squad jblizzle's Avatar
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    Re: CYA = 90ppm, pool store says no problem???

    Well they are partially right, by the time you reach 120ppm, you will need to drain and refill.

    There is no reason to need to be higher than 50ppm, and using our methods, you never have to drain the pool.

    They claim the higher CYA values are fine so they can continue to sell the pucks.

    Even if she can not find the 12.5%, they certainly have bleach in Texas
    Jason, TFP Moderator
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    Re: CYA = 90ppm, pool store says no problem???

    Quote Originally Posted by twodogs02
    According to several pools stores in the Dallas / Fort Worth area, the legislature has restricted the sale of 12.5% Sodium Hypo to consumers.
    According to the Hasa website there are two dealers in the Dallas/Fort Worth area who sell Hasa chlorinating liquid (Hasa has a chlor-alkali production facility in Dallas):

    A-Quality Pool Service
    8001 Boulevard 26
    76180-7155 -- North Richland
    Phone: (817) 281-0781

    Gohlke Pools
    909 Dallas Drive
    76205 -- Denton
    Phone: (940) 384-7665

    I called A-Quality Pool Service and they sell 4 gallons in a case for $20 (there's a $6 deposit for the case which you get back at the end of the season if you don't keep it). It's guaranteed 12.5% but they get it fresh every other day so it's more likely to be closer to 15%. At $5 per gallon, it's not cheap, but it's not a horrible deal either. It's between $3.50 and $4 for me locally in the San Francisco bay area. I also called Gohlke Pools and they also sell it by the case (4 gallons), $24.99 plus $6 deposit for the case. You could probably get bleach for a better price, but it's more weight to carry around, so up to you.

    So go back to those pool stores and tell them that they should stop lying to their customers!
    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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    Re: CYA = 90ppm, pool store says no problem???

    From what i understand CYA sits near the top of your pool so whenever you drain you never have to drain more than the top 2 feet. Is this correct?

    As for CYA running from 50-90 in southern areas i can tell you that is mostly correct. CYA readings of about 30 in the south will not do anything for the most part because of the intense heat and humidity. (i have family living in TEXAS)

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    Mod Squad jblizzle's Avatar
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    Re: CYA = 90ppm, pool store says no problem???

    CYA does not sit at the top of the pool it is fully mixed within the water. There are other posts that discuss this.

    And 50ppm is adequate for the most intense sun levels. Again, much science to back this up in other areas of the forums.
    Jason, TFP Moderator
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    Christian's Avatar
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    Re: CYA = 90ppm, pool store says no problem???

    Dangit Jason!! I was in the middle of typing that! That's twice today too!! I'll just go ahead and second what Jason said. No reason to have CYA over 50 unless you have a salt system. Then you can go 70-80. AND CYA does not float near the top. Apparently I need to take a typing class so I can beat you to these Jason!

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    Re: CYA = 90ppm, pool store says no problem???

    ah okay. i get it. can yall give lessons to my cousin in texas then? dude has been giving me all wrong information lol.


    (startings reading everything!)

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    Christian's Avatar
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    Re: CYA = 90ppm, pool store says no problem???

    Haha yeah take a look at Pool School Alex (link at top right of every page). Everything you need to know is there! Though we're always happy to answer questions too. AH-HA BEAT YA TO IT JASON!!!!

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    Mod Squad jblizzle's Avatar
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    Re: CYA = 90ppm, pool store says no problem???

    I went to the rest room
    Jason, TFP Moderator
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    Christian's Avatar
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    Re: CYA = 90ppm, pool store says no problem???

    That'll teach you!

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    Mod Squad zea3's Avatar
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    Re: CYA = 90ppm, pool store says no problem???

    As a pool owner in Texas, I can tell you that when I let my CYA get over 50 ppm, I began to have problems keeping the pool clear. When a pool store representative gives you suspect advice, ask them if they own a pool. If the answer is no, then they are parroting what they hear from sales reps and have no real world experiance to draw from.
    TFP Moderator
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    Re: CYA = 90ppm, pool store says no problem???

    Quote Originally Posted by twodogs02
    Hi,

    According to several pools stores in the Dallas / Fort Worth area, the legislature has restricted the sale of 12.5% Sodium Hypo to consumers. The pool store continues to sell my mother Trichloro or DiChloro in power form for shocking the pool since she has mustard algae. As of today her CYA = 94 so I called her local pool store to see if they sell Cal-Hypo or liquid (turns out I found liquid chlorine 11% at the local orange big box). While speaking to the owner of the pool store, I asked him what target levels of CYA do they recommend to their customers. His response was 50-90 due to the extreme heat and sun we have in Texas. I asked him at what point does CYA get so high that you recommend a partial drain and fill, his reply 120ppm.

    I am not buying into this because I'm a faithful BBB practitioner although I do live in NY with very different weather than Texas. Anyone ever hear of pool stores recommending these CYA levels in states that have extreme heat, anyone run their southern pools this high? I'm telling mom she needs to be at 40-45 at the most, I run my pool at 30 ppm CYA.

    Feedback is greatly appreciated! Thanks !
    Im in texas, keep mine around 50 and lose about 2-3ppm per day due to the sun.
    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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