Uploaded October 2023 | Updated September 2026, 22 hours ago

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I make a simple aircrete foam generator powered by my shop vac. Based on a viewer's comment, I used nylon window screen for the foam diffusion. I took the prototype through a few iterations to get the airflow and pressure correct. One more iteration to come using stainless steel wool for diffusion.

Plans Available At: greenshortzdiy.com/store
(Plans not available for Vac-n-Foam yet)

Parts List:
2-foot piece of 2" PVC pipe
2" PVC coupling
2" PVC 90-degree elbow
2" to 1" PVC adaptor
1.5" PVC 45-degree elbow
1.5" to 1" PVC adaptor
14 inches of 1" PVC pipe
1" PVC 90-degree elbow
1" PVC end cap
2" to 3/4" PVC adaptor
2" piece of 3/4" PVC pipe
Nylon window screen (4 x 4 feet)