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It is currently May 25th, 2012, 3:51 pm
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rjg202
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Post subject: Should I mess with TA/FC or not after hurricane  Posted: August 10th, 2011, 4:18 pm |
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Joined: June 1st, 2011, 9:13 pm Posts: 83 Location: Northern Maryland (near Delaware)
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I have replaced probably 1/3 of my water and CYA is still high, maybe it was really high. Anyway test kit says TA should be between 100-120 but Pool Calculator says 80-120 for traditional pool.
Here are my #'s
FC 3 CC 0 PH 7.4 TA 80 CH 230 turned light blue/violet CYA 90
Now Pool Calc says to add 47 oz Baking soda to get me to 100 which TF-100 reccomends. I am afraid if I do that I will mess with my PH. Should I just work on bringing the chlorine up at this time and lowering the CYA?
Last edited by rjg202 on August 29th, 2011, 5:33 pm, edited 1 time in total.
_________________ 15'X30'X52" AGP AquaSports Grande Buttress Free (10,620 Gallons), Chlorine Feeder, Hayward Dreamline S190 W Zeobrite, 1.5 HP Hayward PowerFlo LX, AquaLuminator Light+ fountain attachment, Pool Rover, Tf-100 test kit.
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Butterfly
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Post subject: Re: Should I mess with TA or not  Posted: August 10th, 2011, 5:06 pm |
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Joined: May 30th, 2007, 8:57 pm Posts: 6656 Location: South Carolina
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Your TA is just fine at 80. Here's the range of Recommended Levels from Pool School: pool-school/recommended_levels
_________________ TFP Moderator TF100 Test Kit - Pool Calculator - Pool School - Support This Site - Chlorine/CYA Chart You're done shocking when: 1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear. 18K IG White Plaster - 1.5 HP Pump - Hayward S-240 High Rate 300# Sand Filter, TF100 Test Kit "The person who says it cannot be done should not interrupt the person doing it." Chinese Proverb
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Puffin
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Post subject: Re: Should I mess with TA or not  Posted: August 11th, 2011, 4:24 pm |
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Joined: July 23rd, 2010, 6:38 am Posts: 203 Location: Metro Atlanta, Georgia
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Yea, don't mess with the TA unless you're having a problem with your pH drifting.
_________________ 19,600 gal, Vinyl, Grecian L, 1hp pump, 3/4hp booster, Hayward 24" S244T sand filter The Pool Cleaner 4x, PoolSkim
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rjg202
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Post subject: My Numbers after the hurricane, should I shock more  Posted: August 29th, 2011, 5:27 pm |
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Joined: June 1st, 2011, 9:13 pm Posts: 83 Location: Northern Maryland (near Delaware)
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So I dumped about 12 -15 inches of water out after the hurricane. I shocked pretty heavy before the storm and after. Water is clear and Pool Rover cleaned the bottom really well yesterday, though his bag had a green tint. My water stayed clear, and is still clear but the slight green scares me, I also added PolyQ 60 before the storm. I am considering closing in a few weeks and don't want to lose the pool now. Today I had more **** on the bottom, I guess it was stuff just suspended. Here are my #'s today, don't understand why my CYA stays high if I am just on bleach and have been dumping water.
FC 8.5 C/C 0 PH 7.5 TA 80 CH 180 it turned not blue but a violet at 18'th drop, I added 5 more drops and stayed same color so I assume violet is blue. If 18'th drop turned it blue is CH 180 or 170?
CYA 90 (before I tested 90 as well, but pool store tested 140, up from their previous 120)
I am going to let it run like this and just brush some more. Filter is running 18 hours up from normal 6-7 after the storm. All is well
_________________ 15'X30'X52" AGP AquaSports Grande Buttress Free (10,620 Gallons), Chlorine Feeder, Hayward Dreamline S190 W Zeobrite, 1.5 HP Hayward PowerFlo LX, AquaLuminator Light+ fountain attachment, Pool Rover, Tf-100 test kit.
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linen
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Post subject: Re: My Numbers after the hurricane, should I shock more  Posted: August 29th, 2011, 5:46 pm |
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Joined: July 30th, 2010, 8:56 am Posts: 1788 Location: Minnesota
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rjg202 wrote: don't understand why my CYA stays high if I am just on bleach and have been dumping water. Since your CYA is high, it is more difficult to get an accurate reading. Generally speaking +/- 15 ppm is the accuracy of the CYA test up to 90 ppm, above that and the accuracy goes to +/- 30 ppm ( 100 to 200 ppm). It could explain dumping water and still reading high, i.e. maybe your were higher than 90 before, and now maybe you really are at 90. Take a look at the extended directions for CYA testing if you haven't already. Maybe that will shed some light. http://www.troublefreepool.com/extended-test-kit-directions-t25081.html#p206397
_________________ Going to Pool School and learning the BBB method of pool care with a TF100 test kit that helps me use the Pool Calculator to properly maintain the water in my: Round AGP 11K gal (free on CL) with a deep end, Meteor 20" sand filter, Matrix 1hp 2spd, 4 2ftX20ft Sungrabber panels, Intex SWCG (copper bars removed), and Borates. Also a Rubadub hot tub and a UDS (Ugly Drum Smoker) poolside. If your water has you worried, do an Overnight Chlorine Loss Test (OCLT), and if you fail, then follow the Shocking Process until: 1. CC is less than 0.5 ppm, 2. An OCLT shows a loss of 1.0 ppm or less and, 3. The water is crystal clear.
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