I am considering installing a Centek Exhaust
Check Valve. This is not to prevent water
from entering from following seas. Because of the design of my boat there is no way to get a complete run of exhaust
hose to fall to the exit in the transom.
The original design had the hose after the rise from the waterlift just laying on the hull
of the boat rising to the exit, about 15 feet laying below the exhaust elbow
and below the exit to transom. It would be full of water
. Not to mention the possibility of water flooding from a following sea.
I have altered the course of the exhaust to route
to starboard to a point 43" above the bottom of the waterlift see the crude drawing, the course would rise up from the waterlift to a bend 45" above the bottom of waterlift, then drop down to the sole of the boat then route
up the side then to gradual fall to the exit. A second option is to not rise as high after the exit of the waterlift. I do no that there is possible back pressure with these designs, maybe less with the second option. But there is know way around it unless I go back to the original install would still have a back presure problem as so much of the hose has water lying in it.
In both of these design I am relying on the check valve to prohibit the back flow of water into the waterlift and possibly the engine
. When on a starboard tack water would flood back and over the rise in design one.
I would appreciate comments and also experience with Centeks check valves reliability