i have a rotary processor, and never use it because it leaks like mad.
if you want to use your rotary processor, do a test in a big plastic bin
put x-cc's of chemistry in it ( like you are processing 6 rolls or sheets of film )
seal it closed and run it and see how much ( if any ) water leaks out.
the processor i have has seals ( more like plastic washers )
that are thin and need to be schmeered with vasoline each use to maintain a good seal
( recommendation of the company that made / makes them ) but even then the tubes STILL leak a bit ..
jobos always seemed like a great thing, i almost bought one many years ago, but lack of money
sank that boat ...
good luck !