How do you remove the filter from Rigid wet dry vac?

James the attached link/video shows filter just pulls off. I also put a link to the manual and it show the filter held on with large plastic nut, which would have to be removed first.
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4 Gallon Portable Wet Dry Vac
http://www.ridgidparts.com/pdf/WD40500.pdf

Rigid WD4070 Wet Dry Shopvac Unboxing and Overview
RIDGID Shop Vac Review must have tool 2

Check the plug......I have a Rigid and have replaced the plug.

Regards,
Dennis

Check elecrical connection, or switch may be bad.

Always use the foam filter when using the Shop Vac, keep your filters clean and it will operate more smoothly. When sucking water I usually take the foam filter off as well as the cylinder filter

Absolutely remove the filter for wet vac. Also, if your present filter got wet replace it as the pores are now clogged and you can't save it. J.

To change from dry to wet, remove the paper filter and install ball float if not already attatched

are you using a water , foam material filter?

You need to check the filter and make sure it's on all the way. To do this take the top off the vac, make sure the filter is all the way up and in place. There should be a plastic nut to hold it in place. If you are using it for fine dust particles such as drywall dust, you need a special filter for small particles. The filter that comes with the vac just won't do it!

can I run my sears shop vac without the paper bag, for dry pickup?