I had great success with my first attempt at this mod, but of course I dropped the first one and lost it. The ones I tried to do afterward did not seem to work so well. It would only drain the top third of the cart. I knew then I was dealing with a vacuum issue. So I tried this and its been working like a charm.
All I did was punch out two holes with a pen. The first was in the center where the bridge make contact. Next I made another hole as close to the edge of the silicone as I could. I then cut the straw off of a can of compressed air. I made it so it would stick out about a mm.
When you insert it into your atty make sure that the straw is positioned on the side of the bridge. It may shove the bridge to the side a bit, but I have not noticed any degraded performance.
Another plus side is that with that bright red straw attached to the silicone, I hopefully won't be losing these damn things anymore!
Try it out, and as always, have fun!
