[BB_TX]

I don’t flush after every drain. Typically on last drain before leaving that campground, unless I am going to be there more than a week.

I always drain the tank first. Then start the flush and close the valve for 2-3 minutes, then drain, then close the valve for 2-3 minutes, then drain, until stuff seen in clear extension is relatively clear, then turn off the flush. And I never leave the flush area while the flush is running.