Well.....the rubber glove deteriorated in about a month so it was back to the drawing board.
I found a rubber coated cotton glove and cut the diaphragm from that. It is heavier and I thought it might be too stiff to use.
It seems to be working even better than the other one. We'll see how well this holds up.
I have a Powerhouse surface aerator I'm selling. If anyone is close by and is interested, I will let a member have it for $500.
http://louisville.craigslist.org/grd/3784542598.htmlsean