Water Pressure gauge hose location

[scottswierenga]

I've searched my manual and can't find what I'm looking for. Where on my '75 Mercury 1500 TOP do I attatch my water pressure gauge hose? Its been loose inside my cowling since I got the boat and can't find a fitting missing it's hose.

Ideas?

 

[teamhart2]

not sure if its by the manual, but if you just add a t to the water line that heads to your telltale itll give you a rough idea, mine works fine there on my v6

 

[scottswierenga]

I guess all that's left is to figure out exactly what size and kind of tee to get and slap her in there