Muriatic Acid Dose for a 20,000-Gallon Fiberglass Pool: Lower pH Without Etching
Fiberglass pools need careful pH control because the gel coat etches below 7.2. This guide gives you exact muriatic acid doses for a 20,000-gallon fiberglass pool, explains why pre-dilution matters, and walks you through a safe application process that protects your surface.
