Summer is the hardest season for hot tub water chemistry. UV light destroys sanitizer, heat accelerates chemical reactions, and more people in the tub means faster contamination. This guide covers exactly what to adjust and when.
Hot tub shock comes in two types: non-chlorine (MPS) and chlorine-based. Each does a different job. Knowing which one to reach for – and when – saves you cloudy water, skin irritation, and wasted product. This post breaks down both types clearly.
Low calcium hardness is one of the most overlooked hot tub chemistry problems. Soft water slowly corrodes equipment and surfaces by pulling minerals from whatever it touches. This guide explains what soft water does, how to test for it, and exactly how to fix it.
Most hot tub owners are told to change their water every 3 months, but the real answer depends on how often you use it and what’s in the water. This post covers the signs your water is done, a simple formula to calculate your actual drain schedule, and how to squeeze more life out of each fill.
Cloudy hot tub water has a short list of causes, and most of them are fixable in under an hour. This guide ranks them by how often they actually happen and walks you through each fix with specific numbers – no guesswork required.
Getting your hot tub chemistry right at startup sets the foundation for every soak after it. This guide walks you through the exact sequence, the right target numbers, and the mistakes most first-timers make before they ever get in.
The first week with a new hot tub sets the tone for everything after it. Get your chemistry dialed in, learn your testing rhythm, and build a few simple habits early and you will rarely deal with a real problem. This guide walks you through it day by day.
Summer sun is one of the fastest ways to wreck your hot tub chemistry. UV radiation burns off sanitizer, heat accelerates chemical reactions, and an uncovered tub in direct sunlight can lose its entire chlorine reading in hours. This post breaks down exactly what’s happening and how to fight back.
A strong chlorine smell from your hot tub is almost always a sign of chloramines – combined chlorine that forms when sanitizer reacts with body waste. Ironically, it usually means you need MORE sanitizer, not less. This post explains the chemistry and exactly how to fix it.
If your hot tub pH keeps creeping up no matter how much pH decreaser you add, the problem is almost never the pH itself – it’s usually high total alkalinity or aeration. This post explains why pH rises in hot tubs, how to find the actual cause, and what to do about it for good.