Each of these methods has its pros and cons.

What are spa test strips?

Test strips are, by far, the easiest method. After capturing a proper water sample, you submerge a test strip in the sample (following the instructions) and compare the colors on the test strip to the reference guide that comes with the kit. The downside of test strips is that they tend to be less accurate than the other forms of testing.

What are spa & hot tub liquid tests?

Liquid tests are more accurate, but slightly more difficult to perform. In this method, you’ll use an eyedropper to precisely add a small quantity of chemicals like phenol red and orthotolidine to the sample, and then compare the sample against a white background to determine the results. This method is ideal, however, if you’ve always wanted to pretend to be a forensic scientist in a crime drama montage.

What is professional testing?

The most accurate form of testing is using a computerized system with results analyzed by trained professionals (i.e. the Zagers team). These test systems can be expensive, and the average person isn’t trained and certified to interpret the results. But we are, so don’t hesitate to bring your water sample in.