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  1. R

    Low Calcium Hardness with Scale

    Greetings! We refinished our 20 year old pool in 2015 with SGM Diamondbrite. Over the first winter (closed and covered) it developed calcium scale. I know the solutions to get rid of the scale, so I'm not looking for that info. The scale was all over, but keeping the CSI low, it is now only...
  2. R

    Scale removal and pool closing

    Greetings from PA ... new Diamond Brite finish May, 2015. Kept numbers good May thru October, even CSI mostly negative. Opened 2016 to scale. Keeping ph lower (7.2-7.4 rather than 7.6-7.7) and it got better, but still have some scale on walls. Any of the scale removal products recommended...
  3. R

    Diamond Brite Numbers

    First a huge thanks to everyone for this site and all the info, posts, etc. I've learned a lot since late last year after much frustration with several pool stores. We had our 20 year old pool refinished with Diamond Brite on May 9. Coronado's Pool Plaster did a great job and I've worked hard...
  4. R

    How high to SLAM?

    Greetings! Rick here. I'm new to the site but have been taking care of our pool for 19 years. We have a 23,500 gallon plaster pool in Bethlehem, PA. Hayward 1.5 HP single stage pump, Hayward DE Filter, Polaris Pool Cleaner. My wife pretty much did the chemical thing until about 4 years...