CloudDriver wrote:
We mostly dry camp and as such we are very conservative in water usage. We use minimal water in the toilet. We can go 5-6 days and sometimes 7 days on our 33 gallon fresh water tank before needing to dump waste and refill fresh water. We never add any amount of water to the black tank to start it off. IMO that is an urban legend. In 10 years of RVing we have never had an issue with the black tank not draining.
As already mentioned - never leave the black tank valve open when at a full hookup site.
Yes, but I suspect your tank is the deeper type like my previous TT. I didn't need much water when I flushed. Using my MH the same way I immediately got a clog.