Sorry to be a bother, but I seem to be having my share of small nagging issues.

Before I left out of Lunenburg Ns. (full hookup sites) for my Dry camping experience I did the following. I dumped both Black and Grey water, flushed both tanks out, and topped off the fresh water tanks etc.

I have 2 12volt pumps, and when I was done one of them #2 was running with no water source on. I can shut it off , but when I turn it back on it starts running again, what's up with this, the pump is new and has been working just fine.

can an air lock in the fresh water tank, accumulator tank, hot water tanks lines etc. can't figure this out, should I just kick the pump with my 8 Lb hammer?