Newbie w/Pebble Tec ?

MTH

0
Jul 5, 2015
1
Florida
Ok. For the Pebble Tec experts. I built my own pool back in 2002. The finish I chose was Black Pebble Tec. I have not been the best at maintaining water quality. The pool still looks great. I do have some areas of white spots. The other day I put a chlorine tab in the spa and noticed where it dissolved the surface darkened to what appears to be original color. Question is what happened? And is there something I can do to make entire surface look this way short of draining and acid washing?
 
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