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Hi there, I have a question on calcium hardness. I had an RO service done two weeks ago. Prior to the service my calcium hardness was 600. After the RO service it was down to 100. It’s now at 125 and has been there for quite a few days. According to Pool Math it should be minimum 250. I’ve had...

Hi there… I live in the Phoenix metro area and it will be 100 degrees plus everyday over summertime. My garage and shed get pretty toasty. I have a chest freezer in the garage temp controlled with an inkbird controller. I can keep it at a constant 75 degrees. Or any temp I like really. Would...

Hi, I had a RO service done 6 days ago. My CYA tests since then have shown zero. I have the TF100 kit and I fill to the top of the cylinder (above 20) and can still see the dot at the bottom. A bit cloudy, but can still see it. I went to buy some liquid conditioner today and brought my water...

Hi everyone, This is my second post here. I did an intro just over a year ago and kind of faded off for awhile, continuing down the path of the dark side (pool store). Well I am all in now. I did a drain and fill about a year ago with the help of a pool service and this year I have a slight...

Hi everyone. Checking in from Gilbert, AZ. I am looking forward to learning how to care for my pool on my own. I have been spending time reading the Pool School section regarding water chemistry, basic's, equipment, ect. I just did a drain and fill (with help from a pool service) and will be...