Originally Posted by sailingdog
By not filling the bowl using the flush or wet setting, you're likely to be damaging the seals in the raw water side of the pump.
Then why the heck do they give you the option then ???????? Any way that's the way I've been doing it for 3 years on one boat, 6 years on another boat, and now I'm into my 4th year on this boat - With No Problems. So I and many other people I know will continue to not use sea water to flush with and I'm not the Slightest Bit Worried about any problems you may have imagined.