If the shop vac filter gets wet, it will need to be replaced. The process of replacing the filter is as follows:
- Remove the old filter from the vacuum.
- Take the new filter and insert it into the vacuum.
- Secure the new filter in place.
- Turn on the vacuum and test it out.
If you notice that your shop vac isn’t working as well as it used to, or if the suction power has decreased, it’s likely time to replace the filter. A good rule of thumb is to replace the filter every three months, or more often if you use your shop vac frequently.