My 18yr old ShopVac finally died. I'm sure most of you guy have and use one of these. This one did a lot of dust collecting. Can't count the hours it spent connected to a RO palm sander.
I needed it to clean up a small flood when it died. I still had an old 3 stage Vac motor from a HVLP turbine build sitting on my bench, so I thought why not see if it will work. Same size, dropped right in the motor housing in the lid. After I got the thing grounded, I thought I would give it a test and see how much water it would suck up in a minute. It was sucking and bucking so hard I turned it off after 20 seconds. It had sucked up 8 gallons! I tried it connected to my palm sander, too much suction, I could barley move the sander!
Makes the single stage motor these come with seem worthless. If you have a ShopVac that dies, you can get one of these 2 or 3 stage motors for around $60, which is way less than a new Vac.