Good so far; the final test is to suck, then seal the end of the tube with your tongue - using new tubing is a very good idea, unless you like the taste of petrol!
If it won't hold vacuum, and the valve opens again, either the diaphragm or tube connector is leaking, and needs to be replaced.
Cheers, Gadge
"ODK Mods can explain it to you, but they can't understand it for you..."
"Crazy can be medicated, ignorance can be educated - but there is no cure for stupid..."
