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I live in Phoenix, so we've always had high calcium hardness readings. I use Taylor testing reagents. After our yearly spring pool drain, I always bring a sample to Leslie's for comparison. Until a few years ago, Leslie's numbers weren't too far off from mine. But the past three summers...

Great idea. Thank you.

Re: Calculating CH rise and Pool Draining in Phoenix Appreciate the input, but I really don't want to deal with the high CH and covering our pool in the heat of the summer. Won't that just make the water hotter? We're swimming in 90 degree water during the summer as it is. And we have storage...

Wrote you all last fall about my new pool, rising CH, plaster-quartz composite interior. Finally, the end of October, the CH leveled off at 850. I have a kit that's been tested against standards, and I have been consistently getting a reading of 825-850 since the end of October. Fill...

Okay, again lots of information. But my CC is not raising after the sun goes down--it's the FC. And the TC is the same as the FC. It's based on color, so it's subjective to some point. My kit tests for DPD chlorine .5-5. I just noticed that the FC gets a little higher after the sun has been...

The kit is a Taylor K2005 and was 83.99. Has the usual, TC, FC, pH TA plus CH & CYA. I know they're cheaper on line, but I didn't want to wait. I don't measure chlorine that high, so I don't think I need or want a more complicated chlorine test. And test strips are bogus. That's why I began...

So much information. What does FAS DPD test for and how will it help this situation? I've already got $85 into a test kit, so I'm not inclined to spend more unless it's going to significantly reduce the time I have to spend on this baloney. What is "on-Balance"? I went with a company who has...

Thank you Mr. Chem Geek for the info. I knew there had to be something off. Expert told me it was normal for the pool surface to be depositing so much calcium into the pool. Seems like the start-up guy used bottles of acid to drive the ph down for the first three days, and then he came back and...

Thanks for the info. I did buy and tested my Taylor K2005 against standards. It's good. According to the expert, my TA had dropped to 60, but I was getting a 90 reading, so . . . And I thought CH was just calcium--at least that's what this site's definition says. The guys at Leslie's checked...

My pool--quartz composite similar to ultrapoz-- is only 3 months old and already has CH of 750--according to the Expert the pool builder sent out. Leslie's had my last reading at 430. Because the pool is new, and the 400+ CH reading, I was already trying (acid almost every day) to keep my ph...

I, too, have had problems with testing from Leslie's. Have learned that neither Leslie's or B&L test their reagents against a standard. They don't seem to follow the kit instructions either. They do so many all day long, I think they're sloppy. So, chances are none of us is getting a good...