I have a few concerns.
pragmatic said:
Acid-wash completion 10/24
You say you did an acid wash, what prompted this?
New pool-PB did it. Part of the Diamond Brite plaster application process.
pragmatic said:
...10/24 Using stabilized Cl tabs
12/4
pH 8....CYA 20
You say that as of 10/24 you were still using Tri-Chlor/Di-Chlor tabs.
Yet on 12/4, over a month later, your pH was still high. Tabs are acidic and bring your pH & TA down, not to mention your CYA was very low. Tabs put CYA in your pool.
I've been battling high pH and low FC with small additions of CYA and Muriatic acid. I was told the water should stabilize with time (new plaster).
pragmatic said:
12/6 .... [added 40oz (6% bleach) and moved chlorinator to 5 (max)]
I added an additional 2lbs Ca Hypo 68%; at recommendation of pool store, I purchased 25lb granular type. My plan is to switch to liquid bleach for future shocks.
Now you have added bleach, but you have adjusted your chlorinator. Is this an automatic puck feeder, a floating puck chlorinator, or a liquid chlorine dispenser?
It's an automatic puck feeder.
pragmatic said:
12/6...... CYA 20 [added 4lbs CYA]
Nearly 1 month and a 1/2 later your CYA is still @ 20 using pucks?
Every 1ppm of chlorine from a tri-chlor puck will net you 0.6ppm CYA. For di-chlor, every 1ppm chlorine will net you 0.9ppm CYA.
Di-Chlor 8oz Tablet - 2.2ppm + 2ppm CYA
Tri-Chlor 8oz Tablet - 2.2ppm + 1.3ppm CYA
You added CYA yesterday, what is it at now? How are you measuring CYA?
I'll check it tonight (I'm in shock mode now [FC@11ppm]; will this interfere with CYA test results?)/ per instructions-Taylor K-2006 kit
To summarize my questions and concerns.
1. Have you been using tri-chlor/di-chlor pucks this entire time?
Yes, I want to continue using these as well. Should I not?
2. If so, your CYA will be much, much higher than that.
*Unless you have only used 10-15 pucks on a fresh fill.
I'm guessing my PB added very little stabilizer after the acid-wash and I've only had to recharge the Chlorinator with 4tabs since install. Maybe that explains the low CYA?
3. Did you use them at 1st to raise your CYA, then switched to bleach? Or switched once you found this forum maybe?
I'd like to utilize my chlorinator and use bleach only for shock. Is this OK?
4. I'm concerned that your CYA really and truly isn't 20ppm, but much higher than that.
see#2
Please review the extended testing procedures for all of your tests, concentrating on the CYA test at this point. But do study the others as well. Read all the tips, directions, steps and everything you see in that category. Then read the steps again and follow along as you do the test.
Water temp HAS to be >70F. If not, warm the sample from your pool in a hot sink of water till a thermometer reads the pool water sample at or above 70F. A little higher is best, simply to compensate for inaccurate thermometers.
extended-test-kit-directions-t25081.html
Report back and let us know your findings and answers to the above.
Thx
Don't despair and hang in there!
We'll help you get your pool looking better than you have ever seen it and feeling better than it ever has before. Not to mention smelling and even tasting better.