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I have a calcium buildup around the negative edge spa. A wire brush did not work. My plan is to drain the pool a few feet and try CLR. Calcium crystals only show up in spa. Any suggestions about how to best treat this? Also I have been mostly using TFP protocols and recommended test kits for a...

I have the tailor test kit recommended by TFP. My Cya test only goes to 80 and I can still see black dot perfectly. How do I test CYA if over 80? My 10000 gallon in ground pool is 2 yes old and always crystal clear and requires little maintence but recently it got cloudy for the first time in...

Hi there, I just backwashed my Jandy and have questions about the recharge. 1. What is the quantity of DE I should use for recharge? Would I use 80% of 60lbs of DE? 2. Is a pound considered 2 cups? 3. When I add DE, is an n95 mask sufficient to protect my lungs or should I use a better mask...

I am a new pool owner. I use a Taylor Service Complete Pool Water Test Kit K-2006C to test. I was out of town and FC dropped to 0. Pool is 10,000 Gallons fresh water FC: 0 PH:7.0 TA:70 CH: 630 CYA: 40 Water temp: 92 degrees most days, we are in Austin, TX it is 100 degrees and most of the pool...