Xiaomi’s wet-cleaning robots have become an integral part of the smart home, but many users are faced with a dilemma: how much water to pour to make cleaning efficient, but not harm the device? The answer depends on the model, the type of flooring and even indoor climate conditions. In this article, we will understand how to properly dispense water for popular models – from the budget Mi Robot Vacuum-Mop to the flagship DreameBot and Xiaomi Robot Vacuum X10+.
Lack of water will lead to dry cleaning instead of wet, and excess to floor squashing, pump overloading, or even leaks, and we analyzed the manufacturer's official recommendations, user reviews, and specifications to make clear instructions, focusing on cleaning modes, types of fabric nozzles, and nuances that are not covered in the manual.
Why is the right amount of water important?
You might think that the more water you have, the better the cleaning, but in the case of Xiaomi's robot vacuum cleaners, that doesn't work.
- 💧 Dilutions on laminate and parquet - wood materials absorb moisture, which over time deforms the coating.
- ⚡ Electric pump overload – in cheap models, this can cause failure in 6-12 months.
- 🚫 Leaks – if the tank is full, water can spill out through valves or joints.
On the other hand, lack of water makes wet cleaning useless: the nozzle simply smears dirt on the floor without removing it.
- 📏 Areas of the room - for studios and large halls, the norms are different.
- 🧼 Degrees of pollution – after repair or with children/animals, more moisture is required.
- 🌡️ Temperatures and humidity – in dry rooms, water evaporates faster.
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If your Xiaomi robot vacuum cleaner leaves wet footprints, reduce the volume of water by 20-30% and check the condition of the nozzle - it may be worn out.
Xiaomi’s official model recommendations
The manufacturer specifies the maximum amount of water for each device, but the actual limits are often lower, and the table below is data from instructions and tests from independent laboratories (e.g. RTINGS.com).
| Model robot vacuum cleaner | Volume of water tank (ml) | Recommended volume of water (ml) | Notes |
|---|---|---|---|
| Xiaomi Mi Robot Vacuum-Mop P | 200 | 120–150 | For laminate - no more than 130 ml. In Silent mode, water consumption is lower. |
| Xiaomi Robot Vacuum X10+ | 300 | 180–220 | Automatic flow control depending on the type of gender. |
| DreameBot D9 | 270 | 150–200 | When cleaning carpets, water is supplied only to hard surfaces. |
| Xiaomi Mi Robot Vacuum-Mop 2 Lite | 240 | 100–140 | Budget model - the risk of leaks when overflowing is higher. |
| Xiaomi Robot Vacuum S10 | 250 | 160–200 | Supports hot water (up to 50 ° C) - the flow rate increases by 10-15%. |
Important: for models with Auto Water Addition (for example, X10+), the maximum volume is indicated, but the robot does not dispense water by itself. It is pointless to manually pour more than normal, the system will limit the supply.
How to calculate the amount of water for your room?
The formula is simple: 10-15 ml of water per 1 m2 of floor space in a standard cleaning.
- For laminate / parquet: reduce the norm to 8-10 ml / m2.
- For tile/stone: can be increased to 15-18 ml/m2.
- For mixed coatings: use an average of 12 ml/m2.
Example: for an apartment of 50 m2 with laminate flooring, 50 × 10 = 500 ml of water will be required, but since the tank of most models holds 200-300 ml, cleaning will have to be divided into 2-3 cycles or replenished by hand.
How to measure the area of the room without roulette?
If your robot supports zoning (such as the Xiaomi S10), set up separate wet cleaning modes for each room:
- 🛋️ Living room with carpet: turn off the water supply or reduce to a minimum.
- 🚿 Kitchen/bathroom: maximum water level (but not more than 80% of the tank).
- 🛏️ Bedroom with parquet: medium level (50-60% tank).
Types of nozzles and their effect on water consumption
In the robot vacuum cleaners Xiaomi uses two types of nozzles for wet cleaning:
- Microfiber: standard on most models, absorbing up to 70% moisture, but quickly wear out (replacement every 3-6 months is recommended).
- Velur: found in premium models (e.g. DreameBot Z10 Pro) hold up to 90% water, but require careful washing after each cleaning.
The type of nozzle depends on the actual water consumption:
| Type of nozzle | Water flow rate (ml/min) | Recommended volume for 50 m2 |
|---|---|---|
| Microfibre (standard) | 1.2–1.5 | 150–180 ml |
| Microfibre (enhanced) | 0.8–1.0 | 100–120 ml |
| velour | 0.5–0.7 | 80-100 ml |
🔍 How to check the wear of the nozzle? If after cleaning there are fibers on the floor or water is not absorbed (puddles form), it is time to replace the nozzle. In the Mi Home app, some models (for example, in the Mi Home app, X10+) show the degree of wear in percentage.
Make sure the nozzle is clean and dry.|Check the tightness of the water tank|Pour water to the mark (not higher). MAX)|Set the cleaning mode depending on the coverage|Close the doors to rooms where cleaning is not required-->
Frequent Mistakes and How to Avoid Them
Even experienced users make mistakes when pouring water.
⚠️ Never use hot water above 50.°C is a deformation of the plastic parts of the tank and can disable the pump. in models with support for heating (for example, Xiaomi). S10) Temperature is automatically adjusted.
Mistake 1: Pouring water "in the eye"
Many users fill the tank "to the top" without paying attention to the tags.
- 🌊 Water overflow through the valve (especially in Mi Robot Vacuum-Mop 2 Lite).
- 🔋 Increased battery consumption – the pump has to work at the limit.
Mistake 2: Using detergents
Xiaomi strongly recommends not adding soap, vinegar or specialized detergents (except for the original capsules for some models) to the water.
- 🧴 Laying of nozzles with lime raid.
- 🚫 Loss of warranty (service centers check the tank for chemical residues).
Error 3: Cleaning carpets with water supply turned on
Even if your model supports wet carpet cleaning (like the DreameBot L10 Pro), it is not a regular thing to do, and moisture penetrates the base of the carpet, creating the perfect environment for mold and dust mites.
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To clean carpets, use Dry Vacuum mode or turn off the water supply in the zone settings.
How do you care for a water tank?
The cleanliness of the tank has a direct impact on the quality of cleaning and the life of the robot.
- Wash the tank after each cleaning. Use warm water and a soft sponge. Citric acid can be used to remove plaque (1 tsp. per 1 liter of water), but not more than 1 time per month.
- Dry the tank. Leave it open for 12 to 24 hours after flushing to avoid odor.
- Check the sealing gums. Over time, they lose elasticity - replace them at the first sign of wear (cracks, deformation).
🛠️ How to Clean Clogged Nozzles?
- Remove the nozzle and wash it under running water.
- Use a toothpick or needle to remove blockages in the holes.
- Blow the nozzles with compressed air (for example, a canister to clean the keyboard).
⚠️ Warning: If the robot still doesn’t spray water after cleaning, check the electromagnetic valve (in Xiaomi models) X10+ and DreameBot D9 If it breaks, it needs to be replaced at the service center.