Never used a full hookup site. All of my RVng has been at parks where you only get electricity. And of course, I go through the normal procedure of dumping the Black and Grey water tanks after my trip.
So, the question is, what are the recommendations for being at a full hookup with a sewage drain pipe?
The reason why I ask, it would seem that if you just left the blackwater tank valve open, the solids would collect in the bottom, while the liquids would quickly run out - leaving the little (well maybe big in some cases) piles behind.
It would seem to be better to put enough water and chemical ( or if doing GEO, put in 5-10 gallons of water, and only drain/flush the blackwater tank about every 2-3 days? Of course, I would think you could just leave the Grey water tank valve open all the time, since there wouldn't be any solids - or at least stinky solids right away.
Suggestions, experiences, comments?