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 Post subject: Raising CYA using Dichlor
PostPosted: September 9th, 2011, 2:17 pm 
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Joined: May 31st, 2011, 3:48 pm
Posts: 135
Location: Los Angeles, CA
Hello all!

Just as you said a few months ago, my CYA has dropped from 65 to 45 due to splash out.

I would like to raise it to 50-55 using dichlor. Any general ideas how long i should switch to dichlor to get the CYA to 55?

I dont want to keep testing for CYA to save chemicals... I know i know I am being cheap here :mrgreen:

Thanks!



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Suley, West Hills, CA
IG 23000 Gallons with IG Spa Gunite plaster, Pentair Intelliflo Variable Speed 3HP, Pentair Clean and Clear Plus 420 Cartridge filter, Teledyne Laars One series 400,000 BTU Nat Gas Heater, Hayward Max Flo 1HP Single Speed Spa pump, Noisy Spa blower, Dolphin Deluxe 4 robotic vacuum.
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 Post subject: Re: Raising CYA using Dichlor
PostPosted: September 9th, 2011, 2:41 pm 
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Joined: November 5th, 2008, 7:13 am
Posts: 1919
Use the Pool Calculator to figure out how many oz of dichlor it will take to get your CYA from where it is to where you want it. (I get 60 oz)

Then figure out how much dichor you need daily, as you test FC daily. (I get 10 oz volume for 2 FC added)

Keep track of the tally and at some point you will have used the total. (I get 6 days at 10 oz volume per day)

Go back to bleach for a week or two before testing the CYA, so that you are sure that it will show up on test. (But test is +/- 15 ppm accuracy so don't bother testing.)



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22,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas. Trouble Free Pool since April 2009.

Sill a novice, don't let the post count fool you
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 Post subject: Re: Raising CYA using Dichlor
PostPosted: September 9th, 2011, 3:29 pm 
Registered User

Joined: May 31st, 2011, 3:48 pm
Posts: 135
Location: Los Angeles, CA
Thanks!

I keep forgetting to look at the lower part of the pool calculator!



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Suley, West Hills, CA
IG 23000 Gallons with IG Spa Gunite plaster, Pentair Intelliflo Variable Speed 3HP, Pentair Clean and Clear Plus 420 Cartridge filter, Teledyne Laars One series 400,000 BTU Nat Gas Heater, Hayward Max Flo 1HP Single Speed Spa pump, Noisy Spa blower, Dolphin Deluxe 4 robotic vacuum.
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