I hope somebody can help answer this question!!
In July we had our pool re-plastered and re-tiled. . After the pool was filled we noticed a fine white powder at the bottom and were told that it would clear up as it circulated through the pumps. Our pool company cleaned our DE filter and after that we had a very thick layer of white powder on the bottom of the pool and we have not been able to get rid of it. A different pool service has come out and they have not been able to figure out or fix the problem. Can somebody shed some light on this?