Quote Originally Posted by blackburn mark View Post
imagine you have two one way valves attached to the end of the syringe, youll work it out :)

am i sending you a large syringe ? (iv got a few from work)
Oh, two valves ... you're using the syringe as a pump!
If you could send me a syringe that would be great, I've not got any that seal any more - found out they don't like concentrated sulfuric acid. I can papal you something for it.

I had better buy some valves and tube. What diameter are you using?