I think I received a bad batch of Salifert Alkalinity tests.
I recently bought a new Salifert Alkalinity test( the expiration is " 03-2028"). I did a few tests and all of the readings were over 15 DKH. To confirm the results, I used the Hanna Checker to test the same water sample. The readings...
Looking to buy specific Hanna checkers. Looking for a high nitrate hanna tester as well as a low phosphate. Located in Richmond area for shipping costs