Maintenance: changing Shop-Vac filter

Self-tutoring about periodic maintenance: the tutor mentions a job he finally got to.

The following is according to my understanding.

I thought “shop-vac” was a generic term. However, I recently realized the vacuum cleaner in the garage is actually a Shop-Vac – that’s the brand.

I’ve dumped out the dustbin of that Shop-Vac numerous times over the years. Each time, I’ve been cognizant that the filter could use some maintenance at some point, but never gotten to it. The Shop-Vac doesn’t see much use in a year; I mainly use it for vacuuming the footwells of the cars. However, any vacuum’s filter needs periodic attention.

Around three weeks ago I turned on the Shop-Vac and it sounded weird. I shut it off immediately and made a note that its filter needed attention before it saw any more use. It was the Christmas season, so I wasn’t sure when I could deal with it.

A few days later a chance came to head downtown, so I seized it. First, however, I had to assess what I was looking for. I went to the garage and inspected the Shop-Vac, taking off the attachment rack then pulling off the top to examine the filter inside.

It was clear enough to me that the filter was held on by a plastic collar. However, I wondered what kind of filter to buy. I started looking for a model number on the Shop-Vac, for reference. That’s when I noticed, for the first time, a yellow decal on the back which had been partly covered by the attachments in the attachment rack. Since I’d taken off the rack, the decal was apparent. It mentioned four different kinds of replacement filters; I knew the one I needed would be the reusable kind. Next to it were two numbers, the second in brackets. I wrote both down, wondering what the brackets might mean.

At the hardware store I found a three-pack of filters, the dry reusable kind, with the matching filter number. Interestingly, the number that matched was the one in brackets.

Back home, I took the attachment rack off the Shop-Vac and opened it up. The top comes right out, of course, with the filter wrapped around the part that lives inside the collection bin. It’s potentially kind of awkward to work with, being round.

I spread a large rectangle of cardboard on the floor, then set the top part of the Shop-Vac on it. Next I pulled a new filter from the three-pack I’d bought. I immediately noticed the new filter had installation instructions printed on it. I read them and realized they would be easy to follow.

Inside the Shop-Vac, the filter is held in place by a collar, which I pulled off, then removed the old filter. These filters can be dusted off and re-used early in their lifespan, but this one was used up. Following the installation instructions on the new one, I installed it, then drew the collar over it. The three-pack of new filters came with a new collar as well, just in case.

Having installed the new filter, then reassemlbed the Shop-Vac, I proceeded to vacuum my wife’s car. The Shop-Vac worked like a dream – much better than I remember.

This was a case of a job that turned out to be quite easy and straightforward once the commitment was made to do it. However, when I had thought about it casually, I could never see exactly how it would work out.