Why does my spa water look gray?
Ever since we started our pool last month our spa water has looked gray when the pool heater is on. It's very strange as when the heater is off, the water is as clear as ever. I asked our service company about it and they had no ideas. Just to be clear - it's the SPA water that turns gray when the POOL heater is turned on. They use the same equipment, so that may not be a big distinction? Thanks in advance for any help, it's driving me crazy b/c I really don't want to hop into gray water! Marta