03-10-2016, 18:52
(01-10-2016, 21:25)Karren Wrote: I think it's not working for two reasons. The tubing is larger or thicker than the one I use. And my electric pump can remove air from the domes faster that the amount of leakage around the tubing and the hand pump can't. When you start to pump try pushing down on the domes so that the amount of leakage around the tubing is reduced.
I tried pressing against the domes to prevent any leakage around the tubing. But its not working. I think you are right ... the tube I use is a little thick. So vacuum is not created. Can you tell me what is the thickness of your tube?