Oh yeah, that's wrong. And it is probably not original.
Water needs to be injected before the rubber hose and it should be positioned such that water can not back flood into the exhaust manifold. That's why I have the 180° elbow and what the PO was trying emulate with the hose in the middle of the system.
For comparison, the riser on the left is a copy of the factory's original and the one the right is a homemade one after the original failed at the beginning of a cruise and I had to get home. This was on a 1981 Sabre 30 with a Volvo MD7A motor. All of the parts in both are black iron and available at any big box HW store except the 180° elbow, McMaster-Carr has them.
View attachment 231755