Nice, simple vacuum bagging pump

[surfcowboy]

Probably $100-$150 in materials here depending on what you have/buy. Pump is $40--$75 online.

I'd add an output hose/pipe to keep oil out of your shop but that's easy or runit outside when you use it.

[PonoBill]

A standpipe on the outlet can capture and recycle the oil. I made mine about six feet tall with a drain trap at the bottom to collect the oil so it could be poured back into the pump. I stopped using it when I got a dry vac pump. I'd also recommend as large a receiver tank as you can make. If it's big enough you can run the pump intermittently, cutting off the inlet backflow with a solenoid valve and using a cheap vacuum switch with a relay to control the pump and valve.

[808sup]

Can anyone tell me if this vacuum switch will work? The one in his setup was about the same price as the pump.

[PonoBill]

It will work--that's pretty much the standard vacuum switch that folks use. Needs a relay, the current capacity if low. And you can find it a lot cheaper than that (I think). I paid less than ten bucks for mine, but it was years ago.