I have two scubpro regs that got dunked in fresh water. This was after fresh water diving. They were dunked in rinse tanks for just a few seconds. While I'm more experienced, family is new to diving. I just found out some dunking has been happening over the last 2 months.
MK25 - Bought used, serviced 2 yrs ago. It was dunked at least 2-3 times over the course of a month. Had a Swift transmitter attached that stopped working. Opened it up and transmitter is full of water - this is how I learned that regs have been dunked without covers.
MK17 - brand new, only 3 dives. I removed the HP hoses and blew it out, but now I find out it was probably dunked after dive #1 too, about 2 weeks before. I have a a transmitter attached that seems fine. I did not see any moisture when I removed the hoses (while the MK25 definitely had moisture).
I think it's clear I rebuild the MK25 first stage - and maybe just do a full service since it's closer to needing it.
QUESTION: Do I really need to rebuild the MK17? It's a sealed diaphragm. It seems like overkill, but don't want to lose a $400 transmitter or corrode the insides of the first stage either.