Closing your pool with CYA above 80 ppm is a problem you can actually fix without draining the whole thing. A calculated partial drain-and-refill is the most reliable method, and the math is simpler than you think. This guide walks through exactly how to do it, what to expect, and when other approaches fall short.
When your CYA is already at 70 ppm, using trichlor shock can push stabilizer into a range where chlorine barely works. This post walks through the exact dose for a 15,000-gallon above-ground pool, why CYA level changes the math, and what product to reach for instead.
Pool stabilizer (cyanuric acid) keeps chlorine from burning off in the sun, but the sweet spot is 30-50 ppm. Too little and your chlorine disappears by noon. Too much and your chlorine stops working even when the test strip shows plenty. Here's how to handle both situations.
CYA protects chlorine from UV breakdown, but most pool owners don't realize it also reduces how effective that chlorine is. The ratio between your CYA level and your free chlorine level matters more than either number alone. This article explains why, and what to do about it.
Pool stabilizer (cyanuric acid) protects chlorine from UV degradation, but the right amount matters. Too little and your chlorine disappears in hours. Too much and your chlorine stops working. This guide covers both problems with specific numbers and fixes.
Cyanuric acid (CYA) is the one pool chemical that can make all your other chemicals work better - or completely stop working. Most pool owners either ignore it entirely or accidentally let it climb too high. This article explains what CYA actually does, what the right level is, and how to correct it when things go sideways.
Pool stabilizer (cyanuric acid) is essential for outdoor pools, but it's one of the easiest chemicals to overdo. This guide covers the right CYA target, signs you need more, signs you have too much, and exactly what to do in both situations.
Cyanuric acid is the chemical pool owners get wrong more than almost any other. Too little and your chlorine burns off in hours. Too much and your chlorine stops working entirely. Here's how to get it right and keep it there.
