Hach 2755250 5-in-1 water Quality Test Strips (Pack of 50)

Appears to be a highly consistent and accurate testing method, at least for Free & Total Chlorine. This was purchased & test results compared with the Hach 2745050 Free & Total Chlorine Test Strips. Both this and the Hach 2745050 showed the exact same results for Total & Free Chlorine (2 dozen test strips thus far). While not tested against laboratory-grade or reference equipment, I'm confident that test results are at least consistent and accurate for test-strip methodology.

Some the colors especially the one for total chlorine and free chlorine were not showing up well. Seen only on the edges of the little square.

These seem to work to tell me if my water softener is working. The results from these strips was confirmed by another testing method that we use to test water at the power plant I work at. I think they are accurate enough for most home users to have a reliable way to quickly test water hardness and pH without having to take a sample to someplace and have it tested

I use these test strips all the time when I am in a processing plant and need to quickly know the quality of the water.

I added a picture that shows my old bottle of test strips at the top. Beneath that is this bottle of test strips. The old bottle has a line with an arrow on either end that lets you know if the test results are okay or not. This bottle of test strips doesn't have that. So you can test the water and get a result, but there is no way to tell if the results are within the normal range or if your water needs some kind of attention.And that's not enough, they're more expensive than the old test strips. Very poor product.

Easy to use. Easy to read. Accurate readings makes this product a bargain.

Wanted to test hardness of my spring water and Village water. I couldn't see a difference on the test strip. In either case I think I need a water softener.

This does not come with paperwork that describes the process of testing the water or what it means once you compare the color test strips it has the numbers along the side of the bottle which is handy however they don’t tell you whether you should be looking for one part per million 10 ppm