A minimal amount of scale formation that looks like a fine dust is OK. Excess Scale forming on pool surfaces or equipment is an indication of too high a Saturation Index (greater than 0.5). This is caused from improper water balance.
See Problem Water Balance/Saturation Index.
1.) Test water factors and balance water before it is too late. See Problem Water Balance/Saturation Index.
2.) If all factors test Perfect, see a pool professional about Scale Inhibitors.
Perfect Pool and Spa Software! Users: Test water and input all results into the main screen. Follow recommendations.
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