Month: November 2026

Green hot tub water usually means algae has taken hold, though a clear green tint can point to copper. Learn the causes, the shock-and-filter fix, and the weekly routine that keeps water clear.

Green water clears with four moves: shock the tub, run the jets, clean the filter, and wipe every surface. Test free chlorine first, and repeat the shock in 24 hours if green returns.

Green water and a near-zero sanitizer reading are two symptoms of the same failure. Learn why it happens, how to shock and clean your way back to clear water, and the habits that keep it that way.