got meself a collins dump valve.

know what to do but how do you really put it on?? where do you get the stuck to block of one tube so it circulates and well...explain to me as if i was a 4 year old please! any photos would be helpful. thanks

 

sounds like you got a vent to atmosphere dump valve. if so, you need to find yourself something to bung the hole (for recirc) in the intake hose. Just use a piece of metal rod.

 

To block off the "intake" on the re-circ pipe you might use a fizzy pop bottle top, leave it on the bottle and hacksaw off the lid complete with the thread part of the bottle...hope that makes sense ?

Then push the bottle top into the re-circ hose and jubilee clip it.

Good luck, MD.