I need to tap into the cooling system for a water supply for my drive shower. My new blackhawk will run too high to give a reliable source of cooling water. Where is the best place to tap into the water system?

I tapped into my oil cooler. The ends of the cooler were heavy brass castings. I drilled and tapped it for 3/8" pipe and then ran a line over to the transom. I also added a ball valve so I wouldn't waste water when I was on the hose.

it wont run to high,its the prop wash to your cav plate that feeds the shower!not it dragging in the water!

Offshore add. your right , or you can do what Cord says either way !!