It depends on whether your engine is raw-water cooled or close-cooled. In raw-water applications, you can damage engine gaskets and seals if you get too much pressure.

In all cases, you could blow a hose off and have to man the buckets....

Hey Adam i can get a pic of a set up i just put together if y ou want
-Mike

yeah put a pic up, i might just buy the merc ones, but let me see what you made. any good deals on boats right now??? i know ur always lookin.....

These are in Jim Lee's Freedom. Mounted at the top of the strainers. That's a flush line on the right and a #16 dump on the left.