Question about Shop Vac Vacuums
# 1 myou just take the bag out make sure ytou sponge filter is in place athe top and turn it on the power switch just turns on ,machine ther is no wet dry switch just an empty bagless cannister is all you need make sure the ball outlet in vacumn is working it stops water from overfilling cannister # 2 just use the proper bag and attachment to vacumn up the drywall dust a good building supply store has special sanding attachments for vacumn so you can sand and vacumn at the same time
Posted on Dec 18, 2009
disconnect hose and check suction at vacuum port. if suction is poor ther turn off, lift lid, e stick coat hanger wire in port from the backside diverter. also, clean filter.
Posted on May 17, 2010
Check again that the pipes aren't clogged. Check all the way through from where the muck goes in to where it's supposed to end up, paying particular attention to places where the pipe narrows, goes round a bend, or changes material.
Check the machine doesn't just need emptying.
Wet/dry machines usually have some sort of float operated stop valve to stop you flooding the motor when you've filled it with water. Make sure this isn't stuck shut.
Check everything from the impellor right back to where the muck goes in is airtight. It doesn't take a huge hole to lose you a lot of suction. Pay particular attention to places that are meant to come apart routinely, and places where hoses join to hard fittings. If in doubt, run the machine and listen for sucking noises.
If there's a filter between the fan and the air outlet (there usually is) make sure it is clean
Assuming the motor is running, check it is turning the fan impeller.
Hopefully, one or other of these will get you somewhere
Posted on Dec 09, 2010
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