Just wondering. I have a hanna checker and it read 0.0. is this a problem and what should I do thanks
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
ThanksHI 718 Hanna . I guess not for salt water
I never did.Do you really need to test for iodine? Which test kit is the best

