Originally Posted by
Passages
It better not be running in the bilge. Maybe the engine drip basin - but not the bilge.
It would likely be OK if the line ran to a few diapers under the engine. Over the course of a season, I only accumulated maybe a pint of goo in my crap can. That said, it's easy and less messy to fabricate a crap can to contain the stuff. I used a quart plastic jug with some diaper fuzz in it. Cleaned it out 1x/year.
Confirm that there's a check valve in the drain line and it's properly oriented.