AquaChek 7-Way Pool and Spa Test Strips - Silver Pool Test Strips For pH, Total Chlorine, Free Chlorine, Bromine, Alkalinity, Total Hardness, and Cyanuric Acid - Water Quality Testing Kit (100 Strips)

I have lost confidence in these strips. They were constantly reading very high chlorine levels which dictated how much chlorine I added to the pool but I was having recurring algae problems. I eventually bought a test that uses tablets to get a reading and that test said the chlorine levels were very low, which makes more sense. Hopefully my algae problems are now over.

Accuracy is very good

These have been the most accurate test strips I buy. I compared them with the results of my water test that I took into the pool store and they were spot on. One bottle lasted all summer and I was able to keep my pool crystal clear and balanced. They're so easy to use. Dip it in the pool for two seconds then wait 15 seconds. Next, compare the strip results to the guide on the outside of the bottle. It shows you if you're in the appropriate range for these 7 different things.

These are the most accurate test strips out there. I have used around 10 different brands and these are the best. The color chart is very close to what actually shows up on the strip, compared to guessing with others.

Having wasted my time with swimming pool branded test strips, this are amazing! They are very accurate and even more accurate than the Jed chemical kit I have! Highly recommend!

Simple to use, saves trips to the pool shop and allows incremental seasonal adjustments of chlorinator/ sabiliser /ph & acid