Black Tank flush with valve closed

wopachop wrote:
Is it common for people to close the valve with the hose still running in order to prime the tank with some fresh water?

I do close the valve with the flush water running, even though there are warning signs about never ever doing that. I'm just careful to not wander away or get distracted. I have to exercise the same caution when I'm filling my FW tank, because it can burst too. I like to get a half tank or so of water in the black tank to help float solids out. I might even do that a couple of times. I am definitely not obsessed with super clean tanks.

But your question seems to be if anyone does that to prime their black tank after dumping is complete. I don't do that. I go run a couple of bowls in the toilet, adding my chems at the same time. I don't think the flush system would give me a good estimate of how much water I was priming in the tank. Too little and I risk solids drying out, too much and I'm just wasting capacity for my next outing. Using the toilet bowl lets me see how much I'm adding.