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Why are there deposits in my dirty water tank?

Q&A of functional explanation or specification parameters
Updated 12-18-2025 07:06:54 AM Number of views for this article71
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Introduction

To suppress odors when wastewater is stored, your robotic cleaner is equipped with an Anti-Odor Module.

In some home environments, you may notice white or light-colored deposits, crystals, or thin layers of attachment in the Dirty Water Tank or around the Anti-Odor Module. This is a normal phenomenon and is not a product fault. This article is to help you understand why it happens and clarify whether you need to clean it.

Requirements

  • Water
  • A cleaning brush

Explanation

The appearance of these deposits is primarily due to the following reasons:

  • Slight precipitation of the Anti-Odor Module's active ingredients may occur during long-term soaking, which can then react with silt, dust, or minerals in the wastewater to form complexes, resulting in sediment or crystals.
  • Variations in local water quality can affect the frequency and degree of deposit formation.
  • The appearance of sediment is also promoted if the wastewater is not emptied for an extended period, leading to the concentration of impurities.

These deposits do not need to be cleaned as they will not affect the device's operation. Also, these deposits are non-toxic and harmless; they do not impact human health, nor will they corrode or damage the Dirty Water Tank, Anti-Odor Module, or other plastic parts. They pose no safety concerns.

If you prefer the Dirty Water Tank to look cleaner, you can simply rinse it with clean water when you empty the wastewater , or lightly brush off the attached material with a soft brush.

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