[accidental_ booby]

That's not the one. try this
http://www.harborfreight.com/cpi/ctaf/di...mber=39522
but I suspect any of these types of vacuum pumps work. (When I got the pump it was on sale for 30$--now it is back to 39$. I use about 3 inches of vacuum, that's enough to make it a bit sore, and since I'm starting out, I do it several times a day for about 5 minutes each time. I also use weather stipping on the edge of the dome to keep away from INDENTS. A circle of any soft rubbery material would work as well and use aquarium silicone to cement them together. Since I was starting out fresh, the whole business costs around 37$ but you have alsready invested in the NB pump so this may not be a needed purchase but maybe something to consider when it is time to replace the pump. I'm not using NB domes.

I'm of the opinion that , like exercise, short spurts will be better than just trying to lift a hundred pounds right off the bat. The skin is a very delicate organ and we don't want to damage the small blood vessels that keep that skin nourished, or cut off circulation. I'll increase the time as my skin stretches more
Sorry I wasn't more specific the first time.