There are a million videos on on youtube about dust collection. Some are better than others but this one was quite good. So if you are using a shop vac for dust collection you might want to look at this video. The cost to built it is a few dollars.
Enjoy.
Actually, this video is for a sand collector! 
You can experiment. I almost did.
The Duststopper sucks mighty fine. No matter what you use, you’ll still have to empty it and clean the filter in the vacuum.
The Duststopper is MADE IN USA. Best money I’ve spent. Buy it at Home Depot, because their management cares about the USA. Buy a bucket there, too!
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