Category
Chlorine & Sanitizing
Free Chlorine vs. Combined Chlorine: What Your Test Kit Is Really Telling You
Your test strip shows more than one chlorine number. Here's the difference between free, combined, and total chlorine, and why that harsh chemical smell means too little chlorine, not too much.
How to Balance Your Pool's pH and Total Alkalinity
pH and total alkalinity are linked, and fixing them in the wrong order leads to a frustrating chase. Here's why alkalinity comes first, and how each chemical nudges the other reading.
Salt Water Pools Explained: How a Chlorinator Actually Works
A salt water pool isn't chlorine-free — it's still sanitized by chlorine, just generated on site. Here's how the cell works, what salt level it needs, and how to maintain it.