Looked around a bit at degasser whips and stumbled upon a youtube video using a wine saver vacuum pump to degas wine. I couldn't find the model he was using so i rolled the dice on vacu vin wine saver off amazon. It came with 2 stoppers for $12 shipped. After a quick look i realized all i needed was a tube to connect from the plug to the carboy stopper. I used a belt sander to remove the cup part of a 3 piece airlock and tossed it together, seems to pull a good vacuum. From what I read, 20-40 pumps 2 days in a row will pull all CO2 out of the mix.