Phosphates don't hurt swimmers, but they feed algae. When removal makes sense — and when it's a waste of money.
This guide is part of our Pool Water Chemistrypillar and is currently being written. Want to be notified when it's published? Drop us a line and we'll send it the day it goes live.
In the meantime, here's the pillar overview that covers the fundamentals:
What the ideal pH range is, how to test it, and exactly how much acid or base to add to hit 7.4–7.6.
Free vs. total vs. combined chlorine, why it matters, and how to keep residual between 1–3 ppm.
Total alkalinity (TA) keeps pH from bouncing. Here's how to test, raise, and lower it safely.
CYA protects chlorine from UV — but too much neuters your sanitizer. Target 30–50 ppm and know when to drain.
Our CPO-certified techs run this exact playbook on every weekly service visit. Get a free quote.