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After a few months, about as often as you would with the self emptying tower since they seem to stop working just outside the return timeframe. It really depends on your home. I have to empty my self emptying iRobot every time it vacuums because I have dogs that shed every where. Your mileage may vary.
I would recommend:
Sorry, there was a problem. Please try again later.The small bin on the vacuum itself is too small for a full cycle. The self emptying bin is the biggest reason to keep the roomba around.
Sorry, there was a problem. Please try again later.The i3+ will alert you both in the app and on the robot when the bin is full and needs to be emptied. The frequency will depend on the level of dust and debris in your home.
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