Plaster problem

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John B.

Plaster problem

Postby John B. » Fri 17 Jun, 2005 19:50

Last season I renovated my pool and had it plastered by a professional pool company. This season, the walls (about 6-8 inches below the tile line) and the floor of the pool have developed a "sandpaper" type surface. It is so bad that the kids have sore feet and, while diving for pennys, one came up with a bloody knuckle. After plastering, I religiously brushed the surfaces as directed and before winterization the surfaces were fine. What went wrong and how can it be fixed? Thank you!

Pool Help

Plaster problem

Postby Pool Help » Fri 24 Feb, 2006 05:10

It is one of two possible problems.

1- The pool surfaces have built up scale
2- The plaster has been etched away

Testing of the pool water should indicate which one is causing your problem.

High total alk, high pH and/ or high hardness levels would indicate scaling.

Low total alk, low pH and/ or low hardness levels would indicate erosion/ etching.

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