[Jamesb]

Wanted to sanitize our fresh water tank after a long trip. The last water we used in NJ was really smelly. Several techniques we all have used thru the years. Thought I would try the overfill vent on the back as some has mentioned. I tried everything to get water into the hole. Do you think there is a diaphragm in-line with that? I even used a long hose, but no luck. So, I went back to other methods. Anybody ever experience not getting water/ bleach in the overflow/vent?