Digital water tester

If you can tell when one color changes to another (green to red, red to clear, red to blue) then you will still be able to read the drop based tests we recommend. The only required test that is color matching is the pH test, which can be replaced by a relatively inexpensive digital meter.

d30678 said:

Great, thanks. I do have trouble with red/green specifically, so my wife may have to do that. Can you recommend a digital meter for the pH test?

Btw, I bought the TF Pro Salt kit just now.

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Apera pH20 or 60 with their calibrating solutions.

d30678 said:

Btw, I bought the TF Pro Salt kit just now.

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The first time you try the drop tests have your wife (who I assume has normal color vision) observe as well. I expect that you be able to see the color changes for the TA and CH tests, and almost certainly for the FAS-DPD chlorine test (which is a transition from pink to clear). The pH test may give you issues however, in which case the pH meter suggested above is probably the best bet (but do keep in mind that pH meters need care and frequent calibration).

I'm color blind too. And not just a little!

Apera PH60 for the pH testing (you have to keep it calibrated, and stored properly -- don't let the tip dry out)
The rest of the reagent tests are actually pretty easy with with the TF Test Kits or Taylor 2006C. pH might the hardest, but even with that, I've been able to train my eyes so to speak, so I don't need the Apera pH60 meter anymore (though I still use it cause it's super quick). I have some difficulty with the FC drop test because it's hard for me to tell when the color goes from ever so slightly pinkish to fully clear (at the end of the test). But even with that, it's pretty minor.

All in all, the reagent/drop tests are SO much easier for me to read than strips. The ONLY strip test I can even do is the FC strip test, lol. (Strips suck anyways, don't use them).

To help with my color blindness, I find that adding drops quickly helps me see the color changes easier, but obviously that takes some practice and being sure you're counting quickly and correctly and stopping in time!