I've been using a large barrel for dust collection. I have to drag it around separately and hope the vacuum follows around the shop. When my shop vac took a s***, I decided to try this dual vacuum dust collection.

Larger debris goes into the top canister and falls to the bottom, hopefully. I have noticed that Motor from the top canister is spinning when I turn the bottom vacuum on. This makes sense (Newton's Laws). My question is, am I taxing the motor on the bottom vacuum too hard?

I thought about putting a bag in the top vacuum, but my thought is the extra filtering will greatly shorten the life of the vacuum that is doing the work.
Anybody have thoughts on this DIY?

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