DIY Vacuum Distiller - Anybody Interested?

I’m actually considering building this contraption. The lab pump that’s been in my cart for a couple days is $300. This would be cheaper and another advantage would be circulating the water through the condensing chamber since I would have to rig up a bucket for that anyway. My only concern would be that it would pull enough vacuum. I’m just a machinist not a scientist . I just gotta figure it out as I go.

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