I have been using this test kit for several years and it has worked as expected. I have not tested in several months. My sample is turning dark blue as soon as the granules are added. I have verified the kit is good or still working as expected by testing tap water. I saw this question posted on another site but no relies. Anybody know what this indicates?
Car Wash Forum
This is a sample guest message. Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
Hach 5B Hardness Test
- Thread starter CWRob
- Start date
Buckeye Hydro
Active member
It means your softener is working!
It's always a good idea to have a sample port between your softener and the spot free system
It's always a good idea to have a sample port between your softener and the spot free system
Last edited:
