Here's Why Anti-Crush Valves Are So important On Dust Extractors! Like the Camvac EthAnswers 

Yes!! I emailed you a while back about your store carrying these and never heard anything back. Glad you’re carrying them now. Had someone over the other day and was showing them my Camvac. He capped the end of the hose with his hand and the vac lifted my 30 gallon trash can 12” off the floor! Need to get one of these.

Didn't know such a thing existed til right now, so thanks! Having one of these would have saved me from a "my barrel is less-round" situation a few years back! Time for me to place an order. 😁

That was a dramatic demonstration!

The barrel is "less round".... Love that comment Ethan.

Thanks for bringing the pressure release value to Canada. I saw it available in other parts of the world. I do have a 3 motor camvac, but i build my own release value and I placed it at the end of the main line. I saw on another RU-vid channel an example that when you place the release value in a drum of the Cyclonic separator it can disrupt the air flow and it will pull dust from the drum into the camvac.

I have used my canvac for quite a few years and I have never had this problem.I just understood to use a square plastic barrel and braced the sides it has never colapsed even when I forget to open a dust gate.you have understand this a industrial machine designed to work in places like grain silos after a spil

Correct the pressure that exists is atmospheric pressure , the vacuum drawn by the camvac causes a pressure difference with the result that the outside (atmospheric) pressure compresses the barrel ! Nevertheless very interesting and helpful keep up the good work . I use a system which stores dust/chips in a strong plastic bag supported by a metal frame . I will try the experiment when I have a spare bag !!

Thanks for being willing to show this little accident! 😂

Excellent demo!

Good display for the store: Camvac 1, Barrels: 0

Hi Ethan, Very good videos about the different dust extraction types, especially the hose diameter. My question is about how the size of the funnel opening attached to the hose affects the amount of dust pulled away from a lathe. Some turners use 100mm plastic pipe attached to 100mm hose whilst others use large funnels attached to 2.5" hose. What's the best?

Could the Camvac do that to its own barrel or are they stronger than this barrel?

Who cares if positive or negative pressure is called-out the important thing is the demo and the solution.

There's actually no pressure at all. It's building up vacuum. There's no pressure at all on your hoses, only vacuum. Please stop saying that anything was high pressure. There's absolutely no high pressure. You should totally redo this video because it's totally misleading.