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I also see a higher than average CYA loss, around 10ppm per month. Pretty sure it's not due to splash out or water replacement, as my CH remains constant. We do keep the pool on the warm side, around 90, so maybe that's the culprit. Really not a problem, I throw a few tabs in the feeder about...

First, let me just say once again that this site is great. It's been a tremendous help. I understand it's a good idea to run through a decontamination for new spas. I've ordered the Spa System Flush and the directions say to remove the filters while using the Spa System Flush. Is that correct...

I just increased my calcium hardness from 150 to 200 and noticed a marked increase in chlorine usage. Chlorine actually went to zero by days end. Which has only occurred once before, early this year, when I also added calcium (pool store's Hardness Plus). Thought the first time was just a...

Hi, New user, but I've been lurking for a while. This site has been extremely useful. Don't have any questions, just saying hi and thanks for all the good information here. There's so much, that any question I've had in the past is easily answered, either from the pool school or a quick search...