GENESIS C201 Concrete Pools Practice Test

Maintaining water chemistry in plaster pools is essential because plaster is porous and reacts to the water’s balance. Keeping pH, total alkalinity, calcium hardness, and stabilizer within recommended ranges protects the plaster surface, helps the sanitizer work effectively, and prevents common problems. If chemistry is ignored, you can get scale from high pH/alkalinity that deposits on plaster, plaster etching or corrosion from low pH, roughness or wear from improper calcium hardness, cloudy water, staining, and algae growth. Regular monitoring and adjusting to guidelines maintain a stable environment, preserving plaster integrity and overall pool balance. The other options focus on one aspect or unsound practices (daily chlorine without balance, draining monthly, or using only demineralized water) and don’t address the need for overall, regular balance.