First posting on this forum. In the next week or so my pool will be re-plastered and the water here in Santa Barbara CA is extremely hard, +- 700 ppm. I have a 14000 ig and a de filter. I have a TFTester 100 test kit on the way, it should be here before the re plaster so I can give more info/water readings soon. The plaster type is a quartz based sand plaster. Any advice/direction will be much appreciated. I've done a lot of reading on TFP and realize I was really neglecting my pool, ready to turn over a new leaf and try to become a water/maintenance geek!