Im trying to get my water pressure gauge hooked up, and couldnt find where to hook it up so i figured id just put it in the water and start it and see where it pissed water. It didnt. does this mean there was never a water pressure gauge installed? The boat had a merc on it before and got the hose ran allready to the motor, just need to know what i need to hook it up now,

any advice would be great.