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Pros & Cons
pros
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Quick Results
Customers are highly satisfied with the quick results provided by the testing strips, making it an essential tool for monitoring and maintaining their hot tubs or pools. The easy-to-read results enable users to make necessary adjustments promptly.
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Chemical Testing
Customers are generally positive about the JNW Direct Spa Test Strips for Hot Tubs, with some expressing satisfaction in their accuracy and ease of use for testing various aspects of their hot tub water such as pH, chlorine, bromine, hardness and more. Some customers have compared these test strips to lab quality tests and found them to be just as accurate but easier to read. However, a few customers have mentioned that the strips may not always provide accurate results if they are not stored properly or used past their expiration date.

Highlights
Quality
Raise the alkalinity, adjust the ph, adjust the hardness and the chlorine.
The instructions on the bottle instruct user to test weekly, i test twice weekly at least, small adjustments are easy and testi... Read More
I noticed recently that there is a very short expiration date after opening the bottle--2year shelf life for an unopened bottle... Read More
My soft water softener had flipped the gfi outlet and i didn’t catch it right away.
Price
I have invested about 50-75$ on two separate water kits with the chemical drops add 3 drops swirl, add 5 drops swirl.
One third the price of what we were paying.
Other than that it’s a great value for the amount of strips you get and the amount of things it tests for.
Shipping
Product arrived quickly and just as described.
Competitiveness
I have also compared strips to my chem test kits and the results are the same but much easier to read with the strips compared ... Read More
So i compared these with test strips from 2 older purchases that i knew were very good.
Overview
- How are reviewers describing this item?
easy, great, accurate and free. - Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
- Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 54861.
- Our engine has discovered that over 80% high quality reviews are present.
- This product had a total of 42,519 reviews as of our last analysis date on Mar 24 2025.
Helpful InsightsBETA
Posted by a reviewer on Amazon
I noticed recently that there is a very short expiration date after opening the bottle2year shelf life for an unopened bottle but only a 3 month shelf once the bottle is opened
Posted by a reviewer on Amazon
Since i usually only check the water hardness every month that means that the other 97 strips will be wasted
Posted by a reviewer on Amazon
I dont remember if the short experation date was on the previous container but i remember they seemed to be working after several months when i lost the bottle
Posted by a reviewer on Amazon
Keeps reading i have literally no salt and my meter says otherwise
Posted by a reviewer on Amazon
The other readings seem to be fairly accurate
Posted by a reviewer on Amazon
This pack lasted longer than the temporary pool
Posted by a reviewer on Amazon
My soft water softener had flipped the gfi outlet and i didn’t catch it right away
Posted by a reviewer on Amazon
Unfortunately the salt level pad never provides an accurate reading
Review Count History
Price History
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