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I had been using calcium reagents from September of last year (stored in dark at room temperature), they started running low so I switched to the ones I bought new February this year. My calcium level went from 425 to 800. I'm using a speed stir and have ran the test a bunch of times, bottle...

Pool opened a month ago and I keep getting white hazy water. I have slammed four times and started a fifth this morning. Brushing/vacuuming at least once a day, testing and adding bleach at least twice a day, keeping FC at Slam levels until I pass the overnight test. Usually only takes a day or...

Just a curiosity question, when I run the calcium test I always see purple flakes, even if I do the 5 drops R-0010 before I start the other drops. Does this just mean I have some metals in the water? Was filled from city water. Does it mean anything for how I should maintain my pool? Thanks...

My CH level went from 350 to 550 in a month. Fill water CH is 175, live in Kansas City and our water comes from the MO river. New pool so I’ve backwashed a few times and it’s been hot. This seem like a possible increase? My question is, at what point do I dump water and refill? Ok to wait until...

Water started to look cloudy yesterday, FC was at 3.5 so I added 1/2 gallon of 10% bleach(Walmart chlorine). That got me up to 5.5 FC at 9 PM, as of 6 AM 4.0 FC, so 1.5 FC loss overnight. I added another gallon this morning which got me to 8.0, and added another 1/3 of a gallon after that so I...

Pool was filled last Tuesday, 5/11. Builder has a sub-contractor managing the start up chemicals and brushing once a day (I brush a 2nd time). I got my TF-100 today and here are my 1st results. Free Chlorine: 1.0 Combined Chlorine: 1.5 pH...

This website is so impressive, I've been reading articles and forums for two months preparing for the handoff from our builder. I donated and ordered my test kit, handoff happens later this week. Thanks for giving me the confidence to do this myself!