New dark marble dust not adhereing to old surface.

Problems relating to pH and total alkalinity.
Increase ph, increase TA. Reduce pH, reduce TA.
pH chemistry advice and techniques for the pool.
Stan

New dark marble dust not adhereing to old surface.

Postby Stan » Thu 28 Jun, 2007 12:45

Last year my gunnite pool was renovated. Copings repaired, new tile and dark grey marble dust. In a short time 2 large pieces of the new marbledust separated. At the end of the summer, the pool was drained and a repair was made. Now there are other areas that are separating. The repair looks like patches. What causes this separation? I want the company to do the entire pool over. How can the same problem be avoided.


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