View Single Post
Old 04-21-2016, 12:24 PM   #8
Brooksie
Guru
 
Brooksie's Avatar
 
City: Cape Cod, MA
Vessel Name: Island Seeker
Vessel Model: Willard 36 Sedan
Join Date: Oct 2007
Posts: 1,306
I have a Salisbury HydroVac muffler on my lobsterboat. Its been installed for 30 seasons now and I would not be without it. My exhaust was originally offset on the transom but I moved it to the center. Now it is inline with the propeller race and works even better.
My HydroVac is made of heavy neoprene, streamlined, and fits right over the exhaust flange. It came with neoprene shims so it could be aligned with the flow when offset on a curved transom. It does have a small relief hole so that water is not drawn in as the exhaust cools after shutdown.
I am sure I have run over things over the years but the neoprene is flexible enough that it has never been knocked off.
Brooksie is offline   Reply With Quote