How about spilled Kool-Ade powder, or spilled wine, or ketchup. It's time to
take the taste test.
Jim
"Chuck Gould" wrote in message
oups.com...

Bryan wrote:
A few times that I've pulled the drain plug on my boat there has been red
fluid coming out. It happened again the last time I was out.

Are you boating in the Red Sea?

If not, the suggestions of a fluid leak are likely correct.

Or.......

How often do you pull that drain plug?

Could it be that you've got a colony of microcritters camped out in
your bilge? Could this be biological in nature?