Just dip an Aquachek Yellow strip in your pool or spa water for one second, and remove it immediately. You get test results in seconds! To keep your pool at its best, test at each end at least twice a week, and test your spa before each use. It's also a good idea to write down your results each time you test, so you can track changes. Comes with complete instructions in 15 languages: English, French, Spanish, Italian, Czech, Danish, Dutch, German, Greek, Hungarian, Polish, Portuguese, Russian, Swedish and Turkish.
Have used these since purchasing our Swim Spa in 2021. Very effective and a true indicator of the health of our spa water.
Speedy delivery
They are very useful work well
Useful
count on these strips to give you proper readings
Great price and fast shipping. Would of bought more if discounted for bulk