SpaChem Assistant

Don't leave it to chance... take the guesswork out of spa & hot tub water

The Problem Annwn Daily Solves for YOU...

Balance your spa water without the guesswork.

Most hot tub owners know the feeling: you've tested the water, but the results don't quite make sense. Which reading do you fix first? How much do you add? What happens if you get it wrong?

SpaChem Assistant takes the confusion out of water care. Enter your latest test readings — pH, sanitizer, alkalinity, calcium hardness — and the app tells you exactly what needs attention, in priority order, with clear guidance on what to do next. No jargon, no guesswork, no searching for advice online while your spa sits unused.

What it does:

Enter your readings and get an instant water health summary with colour-coded status for each parameter. Follow a prioritised action list so you always treat in the right order. Use the dose calculator to estimate exactly how much chlorine to add for your specific volume of water. Reference the built-in strip colour chart when your bottle guide has gone missing. Save your reading history to track trends over time.

Works on any device — installs like your other apps and, best of all, just £4.99

SpaChem Assistant is a Progressive Web App, which means it works on your phone, tablet, or computer with no app store required. Open it from any browser and install it to your home screen in seconds. It even works offline once installed, so it's always there when you need it at the poolside.