black/gray tanks open-close at site

[RollingDownTheHighway]

I don't see a board for the Shasta Revere yet, so if i'm in the wrong area, please let me know.

We did our first trip this weekend and I have a question on the tanks. Our site has sewer hookups which I did and I emptied my black water and grey water tanks at 2/3, though my question is, since I was hooked up to the sewer, can I leave the valves open or should I keep them closed and just empty at the 2/3 mark?

[Hybrid21SS]

I would keep black closed until almost full to keep solids from sticking and building up. Gray you can keep open but I would close on the last day so you have something to wash out the sewer hose before you leave..

[bikendan]

if it's just for the weekend, keep the black closed until you leave. and you can keep the gray open but close it the day before you leave.
that way you'll have some gray water to flush everything after you dump the black tank.