First thing is to check all your hoses, and filters. Filters rob your vacuum of air flow which equals power.. I don't think that you have a clog so much as I am inclined to think that you have dirty filters. In a wet vac, you can rinse your filters out, but they will eventually need replaced. It's a good idea to have an extra filter around for such an instance.
Answers & Comments
First thing is to check all your hoses, and filters. Filters rob your vacuum of air flow which equals power.. I don't think that you have a clog so much as I am inclined to think that you have dirty filters. In a wet vac, you can rinse your filters out, but they will eventually need replaced. It's a good idea to have an extra filter around for such an instance.