Can the water bucket overflow if I'm not home? 23 March 2023 03:37 Updated No. All our models have a water float which is triggered to turn the dehumidifier off when the bucket is full. Related articles How long should I run my dehumidifier for? Which dehumidifier is best for me? Can the water bucket overflow if I'm not home? Are dehumidifiers noisy? How long should I run my dehumidifier for?