Spent a few days trying to figure out my water cannons. They will be LEAD FREE brass hardware except for the flexible hose, so the turret can turn left and right. I plan to put a 3/4" PVC pipe around the 1/2" Brass pipe to create a pivot. I will then Epoxy/Fiberglass another pivot to the PVC, so the turret can pivot up and down. I'm waiting on a Brass flange, which will mount to the front deck and pass through the water from top side to bilge. I have been reinforcing the entire bow area with fiberglass, wood, and epoxy. The front deck is getting 1/4" Birch plywood to reinforce the cannon area.