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Thread: Fired my pool guy. What's good cya level for Phoenix?

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    Join Date
    Jul 2009
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    Chandler, AZ
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    Fired my pool guy. What's good cya level for Phoenix?

    Bought a house with a pool, and had no knowledge of pool care, so I opted to have a pool guy come and do just the chemicals. He never got it right last summer and I was back and forth to Leslie's, dumping all sorts of crud in there, which sorta worked! I did chems myself during the 'off season' with tablets and an OTO/PH tester. Then I came across your site and bought the test kit. Found my stabilizer through the roof, and drained and filled it in the spring. The pool guy came and immediately dumped so much CYA that the level went to over 150ppm. Needless to say, I've been fighting both algae blooms (black and green) and the pool guy , who insists his high CYA levels are necessary to keep the chlorine in from getting eaten by the sun (I say it's so he only has to come every other week). But, he doesn't keep FC high enough to compensate for high CYA, so I'm constantly on the verge of an algae bloom, and that eats my chlorine up WAY faster than the sun!!! He pumps the FC up with gaseous chlorine, then fills the floater with tabs and comes back long after the FC has dropped to an unacceptable level.

    So I partially drained my pool again, and CYA is at ~55ppm. Did I drain too much? What is a good CYA level for hot, sunny Phoenix, AZ?

    I've been trying to keep FC at shock levels now using bleach (Costco is the cheapest bet around here at 4.26 gal for $7.99) until I get the less than 1ppm drop in FC overnight. Today should be the last day...

    Thanks!
    11000 gal in-ground Baja mini-pebble with spa. 525 ft2 Hayward Swimclear Cartridge filter. LMI 0.42 gal/hr metering pump, liquid chlorine. Sta-rite 1.5 hp pump

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    Re: Fired my pool guy. What's good cya level for Phoenix?

    CYA at 55 is a good place to start. Get used to how that is before trying something higher.

    For extremely sunny areas, CYA around 60 or perhaps 70 can be worth it. But because of the down sides of high CYA levels, it is best to start somewhere lower than that and see how things go before deciding to try something higher.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Jul 2009
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    Chandler, AZ
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    Re: Fired my pool guy. What's good cya level for Phoenix?

    Thanks! I'll give it a go at this level for a while and see how it performs...
    11000 gal in-ground Baja mini-pebble with spa. 525 ft2 Hayward Swimclear Cartridge filter. LMI 0.42 gal/hr metering pump, liquid chlorine. Sta-rite 1.5 hp pump

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    meatloaf's Avatar
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    Feb 2008
    Location
    Gilbert AZ
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    Re: Fired my pool guy. What's good cya level for Phoenix?

    I'm in Gilbert AZ and have been wondering the same thing. I have been keeping mine @ 65 to 70 max. I usually do a partial drain in fall, getting it down to 40.
    My pool is a 10,500 gallon (420 Sq Ft ) kidney shape. A hand made sheer decent waterfeature. STA-RITE HRPB30, Sand filter 30" 98 GPM,
    1 HP Maxi-Glas 2 pump, BBB Method, Taylor K-2005 test kit, 50 Watt 12V low-voltage pond light illuminates the pool at night for a nice soft glow.
    250 gallon stand-alone hot tub. Got it FREE!

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    Join Date
    Jul 2009
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    Chandler, AZ
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    Re: Fired my pool guy. What's good cya level for Phoenix?

    @meatloaf- How much bleach / week or day do you wind up using in your pool in the summer to maintain FC?
    11000 gal in-ground Baja mini-pebble with spa. 525 ft2 Hayward Swimclear Cartridge filter. LMI 0.42 gal/hr metering pump, liquid chlorine. Sta-rite 1.5 hp pump

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    meatloaf's Avatar
    Join Date
    Feb 2008
    Location
    Gilbert AZ
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    373

    Re: Fired my pool guy. What's good cya level for Phoenix?

    I usually add 13 -15 ounces of 10% daily.
    My pool is a 10,500 gallon (420 Sq Ft ) kidney shape. A hand made sheer decent waterfeature. STA-RITE HRPB30, Sand filter 30" 98 GPM,
    1 HP Maxi-Glas 2 pump, BBB Method, Taylor K-2005 test kit, 50 Watt 12V low-voltage pond light illuminates the pool at night for a nice soft glow.
    250 gallon stand-alone hot tub. Got it FREE!

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