Scaling/Calcium on plaster
Hello. Our pool was finished in May of 2012 and has a pebble-sheen plaster finish. After a few weeks, we started noticing white splotches on the plaster of our pool. We were told to alter our water chemistry. It continued to get worse and worse as the months progressed. We are using a scale inhibitor weekly. We are now being told that most likely when the plaster was mixed, they added too much calcium and that calcium is now leeching out. We are being told they can drain the pool and acid wash off the calcium. Any draw backs to this?? Will it alter the color of my plaster? Any other suggestions?? Thank you!