We often think of central vacs as the "set it and forget it" appliance. Unlike a portable vacuum, you don’t have to empty the bin every time you use it. But just because you aren't looking at the dirt doesn't mean it isn't building up.
Over time, even the most powerful central vacuum system loses suction. The culprit? Clogs, dirty secondary filters, and a full dirt canister. how to clean a central vacuum system