I like this method of testing my spa water a lot better than test strips since it is probably more economical and has better accuracy plus it only measures the parameters I am most interested in on a daily basis.
Verified purchase: Yes | Condition: New
The Phenol red test chemical will not give an accurate reading or a PH count. I went back to my old kit made by Aqua Chem and the Phenol Red made by Clorox and I get a perfect reading with no issues.When I use the OTO the readings on both the Clorox chemical and the OTO in this kit match up and compare favorably. Because of the Phenol red not able to give you a reading this means only half of the kit is working properly. Therefore I would have to give this item at most only 2 stars.
Verified purchase: Yes | Condition: New
Nice small test kit, I'm using it for my spa. Works good, good price.
Verified purchase: Yes | Condition: New
Right on time keep up the good work
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
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