AquaChek test strips provide you with all of the important spa water results in just one dip! Whether you use AquaChek yellow, red, or the Aquachek trutest test strips and digital meter, you’ll get accurate results regarding your hot tub’s water impurities in seconds.

Please keep this guide in a safe place so you can easily find it for questions that arise in the future. If you need additional help, please call our spa Customer Service team seven days a week at 844-853-4235 or visit us at


Test strips give accurate test results more quickly and easily than any other method. As with any test kit, there are several factors that can be controlled to ensure the validity of the test results.

Step 1: Follow the directions that came with the kit. Sounds simple, but there have been many cases where a user uses the directions that came with another manufacturer’s strips or from an older kit. Test strips are continually improving and becoming more accurate, and you should never assume that the directions on one container are going to apply to another container’s strips.

Step 2: Store test strips in low humidity environments at room temperature. Test strips are most effective over a long period of time if they are stored properly. Suitable storage gives you confidence in the results until product has reached date of expiration.

Step 3: Keep the cap on tight between uses. Doing this will prevent moisture from entering the bottle of unused strips. It is important that moisture not be introduced to the test strips until you use them in your pool or spa.

Step 4: Keep wet fingers out of the bottle. Test strips don’t know the difference between the water on your fingers and the spa water! Make sure that the only water your test strips are reacting with is the spa water you intend to measure.


pH 7.2 - 8.2 PPM AquaCheck Trutest, AquaCheck 6-in-1
Total Alkalinkity 80 - 150 PPM AquaCheck Trutest, AquaCheck 6-in-1
Calcium Hardness 150 - 250 PPM AquaCheck 6-in-1, AquaCheck Trutest
Chlorine & Bromine 3.0 - 5.0 PPM AquaChek Chlorine, AquaChek Bromine, AquaCheck Trutest


Step 5: Do not use expired test strips. Most containers of test strips will display an expiration date somewhere on the container. Always be aware of this date when using or purchasing test strips. Test strips have a definite shelf life and should not be used after the product has expired. Using test strips after this date will likely lead to inaccurate results.



CLEAN YOUR FILTERS: AquaChek’s products rely heavily on filtration. Regular and prober cleaning of the spa’s filters are pivotal to the success of using the product

MAINTAIN WATER LEVEL: Water should be at least 7 1/2 centimeters (3 inches) above filter intake. Low water levels will lead to cloudy water.

AVOID DETERGENTS: Bathing suits and clothing will retain detergent left over from laundering. Detergent will dissolve in the water and create foam. To prevent this, wash bathing attire in water without any detergent to ensure it is free of it.



SHOWER FIRST: Showering will reduce the introduction of dirt, oils, hair products, deodorants, makeup, perfume etc. to the spa.

KEEP THE AIR ON: AquaChek works better with air in the water. Leave the air intakes “open” between uses to maximize it’s effects. It is better if you can point the jets upwards to increase water agitation when you are not in the spa.


When it comes to the cleanliness of your spa, you want to make sure you’re accurately testing for impurities. That’s where the AquaChek chemical tests come into play. There are differences between the test strips and how you use them, outlined below:

AquaChek Trutest Test Strips

Test for chlorine and bromine, pH, and alkalinity. Dip a test strip into your spa, put it into the digital meter and get fast, accurate results in seconds. The strips and meter do the work for you- no need for manual color matching!

AquaChek 7 (Silver)

These strips are the most comprehensive test strip product in AquaChek’s professional line. They test for 7 chemistries: free chlorine, total chlorine, bromine, total hardness, total alkalinity, pH, & cyanuric acid (stabilizer).

AquaChek Salt System Test Strips

Test for free chlorine, pH, total alkalinity, cyanuric acid, & salt (as sodium chloride). With appropriate salt levels, your salt generator will be able to produce the correct amount of chlorine to keep water clean.

AquaChek MPS 3-in-1

Test for 3 important chemistries in seconds: Potassium Monopersulfate, pH, and Total Alkalinity. Monopersulfate (MPS) is an oxidizing agent used in mineral purification systems.

AquaChek Bromine & Chlorine Test Strips

Red/Bromine test strips are used for testing in bromine based spa water. Yellow/Chlorine test strips are for testing chlorine based spa water. Test for chlorine and bromine, pH, and alkalinity.

AquaChek 6-in-1

These test strips test for 6 chemistries: total chlorine, total bromine, free chlorine, total alkalinity, pH, and total hardness in your spa.

AquaChek Phosphate

Use the most accurate method for phosphate testing: a one step, one-minute, phosphate test!

AquaChek ShockChek

Test for total & free chlorine and determine if you need to shock (or super chlorinate) your pool or spa.

AquaChek Copper

This 3-in-1 test strip is designed for use with mineral purification/copper ionization systems. These strips measure pH and total alkalinity levels.

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