AquaChek Yellow 4-Way Pool and Spa Test Strips - 50 Yellow Test Strips - Swimming Pool Test Strips For pH, Free Chlorine, Total Alkalinity, and Cyanuric Acid - Quick and Accurate Results - Testing Kit

For the past 28 years I have checked our pool’s water using reagents. We’ve never had any major problems, and I attributed that success to a sensitive liquid kit and diligent upkeep. Not too long ago a friend stopped by—he owns a local pool and supply company. He casually asked how we checked our water. When I told him, he laughed and asked why when there are much quicker and just as accurate test strips available. He specifically suggested I give these a try. Having worked in a laboratory, I was highly skeptical of test strips in general, but after using these, I’m eating crow. Accuracy is top-notch and how nice that four tests are done in just 15 seconds. What I really like is a full description how to correct problems should pH, free chlorine, total alkalinity or stabilizer be out of normal range. The product insert that comes with the strips is invaluable. Don’t wait 28 years to change the way you check your pool’s water conditions. These truly deserve five stars. After repeatedly comparing the strips to reagent testing, I’m convinced they work just as well, are definitely a quicker testing method and in the long run, cheaper to purchase each summer season. By the way, Amazon’s prices were several dollars cheaper than anywhere I could buy them locally. Included is a photo of AquaChek’s water chemistry guide and treatment tables.

Works well with out issue.

I rely on this product all year along with the pool open. I recommend this product.

Why did you pick this product vs others?: Trying to find a good chlorine tester has been a struggle. I spent a lot of money on test trips and this one seems to be pretty accurate. He can’t be difficult sometimes however to read as the water runs onto the other pads, making the color to run. It gives a decent average as what I need to do for my hot tub. I do like it. It’s quick but you only get 50 per container so a bit pricey. Overall, to stay safe, it works.

We use this product to test our pool all the time but really like Amazon’s price

Good Price. Accurate.

The best tester for my hot tub. So glad Amazon has this!

I have been buying these test strip for years and it has alway worked well for my pool and hot tub.

Great product - very reliable

Great price, delivery a little slow but considering the price not really an issue

Muy prácticas y fiables. Las tiras Aquaquek permiten comprobar rápidamente la calidad del agua de la piscina y del spa. Son fáciles de usar, con resultados claros y precisos en pocos segundos. El envase mantiene bien protegidas las tiras y resulta muy cómodo para un uso frecuente. Una compra muy recomendable para mantener el agua siempre en buen estado.

Facile à utiliser et fiable . Lecture ok Je l adopte ! Pour l avenir je ne prendrai que celui la .

Excellent. I use for testing mares milk prior to foaling.