In the Kenmore CJUBL2 31125 upright bagless vacuum, the frequency of emptying the dustbin or dirt canister depends on factors such as the vacuum's capacity, the level of dirt accumulation, and the type of surfaces you are cleaning. Bagless vacuums are designed to collect dirt and debris in a dirt canister, which needs to be emptied regularly to maintain the vacuum's suction power and overall performance. Here are some considerations for how often you should empty the dirt canister in your Kenmore CJUBL2 31125 upright bagless vacuum: 1. Vacuum Capacity: The CJUBL2 31125 vacuum should have a specific dirt canister capacity indicated in its specifications or user manual. It's a good idea to monitor the dirt level in the canister and empty it before it reaches its maximum capacity. 2. Level of Dirt Accumulation: If you are vacuuming a heavily soiled area or pet hair, the dirt canister might fill up more quickly. High-traffic areas or rooms with a lot of debris might require more frequent emptying. 3. Suction Power: If you notice a decrease in suction power or the vacuum becomes less effective at picking up dirt, it could be a sign that the canister is full and needs to be emptied. 4. Type of Surfaces: Different surfaces, such as carpets, hardwood floors, or rugs, can result in varying amounts of dirt accumulation. Adjust the frequency of emptying based on the type of surfaces you are cleaning. 5. User Comfort: Some users prefer to empty the canister more frequently to maintain the vacuum's efficiency and prevent dirt from clogging the filters. As a general guideline, you might consider emptying the dirt canister of your Kenmore CJUBL2 31125 upright bagless vacuum after each cleaning session or when it's around half full. This practice helps prevent the canister from becoming too full, which can lead to reduced suction power and inefficient cleaning. Regular maintenance, including emptying the canister and cleaning or replacing filters when needed, will ensure that your vacuum continues to perform optimally. Refer to the vacuum's user manual for specific recommendations on maintenance and emptying intervals, and adjust based on your cleaning habits and the amount of dirt you encounter.