Originally Posted by JTECHSAFF
talking of dump valves, i have a bailey, and a mate has a bailey, they look the same from the outside ,but mine has a rod through the middle that you can see from underneath, but his doesnt . whats the difference?
You have a dual piston one.
Nick,
Yep, that's my understanding. Dual piston ones seem to have a better set up for keeping the piston closed.