Pool & spa care guides
Clear, step-by-step fixes for the problems that actually happen — answer-first, with the exact dosing linked from each guide.
Why is my pool green (and how to fix it fast)
A green pool is almost always an algae bloom caused by too little chlorine. The fix is a big, sustained dose of chlorine…
How to clear cloudy pool water
Cloudy water usually comes from one of three things: not enough chlorine, high pH or alkalinity, or a filter that needs …
Why your pool won’t hold chlorine
If chlorine disappears, you usually have one of three problems: no stabilizer (CYA), so sunlight burns it off; an algae …
How to lower your pool’s pH
High pH stings eyes, reduces chlorine efficiency, and can cloud water. Lower it with muriatic acid (or dry acid). The am…
Pool scale, etching & water balance (LSI)
Crusty scale means your water balance (LSI) is too high; rough, etched plaster means it’s too low. The Langelier Saturat…
Salt cell not producing chlorine?
A salt generator needs three things to make chlorine: the right salt level, a clean cell, and water that’s warm enough. …
Pool chemistry 101 (glossary)
Plain-English definitions: pH, alkalinity, CYA, free vs combined chlorine, LSI, and more.