How to fill up the Xiaomi soap soap with liquid soap: instructions with photos and tips

Xiaomi automatic soapboxes have become an integral part of modern bathrooms and kitchens, combining convenience, hygiene and technology. These devices not only save the consumption of detergent, but also minimize contact with surfaces, which is important in the face of increased cleanliness requirements. How to open the case, which soap to choose so as not to damage the mechanism, and how to avoid leaks? In this article, we will analyze the process of refueling by steps, take into account the nuances of different models (for example, Xiaomi Mijia Smart Soap Dispenser or Viomi). V3) And give you care advice.

It's important to understand that improper refueling can lead to nozzles clogged, pump breakdowns, or even corrosion of internal parts. The manufacturer doesn't always describe the process in the manual, leaving users with a guess. We've gathered the experience of owners, technical data and tips from service centers so you can fill the soapbox quickly, safely and without unnecessary costs.

What soap is suitable for Xiaomi soap: selection criteria

Not every liquid soap or gel is compatible with automatic dispensers. The main risk is thickening of the composition inside the mechanism, leading to blockage of the pump or uneven spraying. Xiaomi recommends using products with certain characteristics:

• 🧼 Consistency: liquid, without abrasive particles (scrabs, peels) Optimal viscosity - like shampoo.
• 💧 Composition: free of chlorine, bleach and aggressive surfactants (for example, SLES concentration above 15%).
• 🔋 pH balance: neutral (6.0-8.0) Acid or alkaline agents corrode seals.
• 🌿 Eco-friendly: biodegradable formulas (e.g. Ecover or Frosch) are preferred).

Among the proven brands, the owners of Xiaomi soaps distinguish:

• 🇯🇵 Saraya (Handy series) - low foam, does not score nozzles.
• 🇪🇺 Ecolab (Skinman line) - antibacterial, suitable for the kitchen.
• 🇨🇳 Liby (Antibacterial Series) – Budget option, but requires water dilution (1:1).

Critical error: use of conventional toilet soap (e.g. Dove or Camay in liquid form) contains fatty acids that crystallize in the tubes of the dispenser, causing a malfunction through 2-3 refills.

Preparation of soap boxes for refueling: disassembly and cleaning

Before refueling, the device must be disconnected from the power supply (remove the batteries or disconnect). USB-The process is often a cause of breakdowns, and we'll take a look at the popular Xiaomi Mijia Smart Soap Dispenser:

1. Removing the top cover: Press the latch (usually located at the back) and pull the lid up. In some models (for example, the Viomi V3), the lid is unscrewed counterclockwise.
2. Removal of the tank: carefully pull out the soap container. If it's boiling, don't use force, moisten the joints with warm water.
3. Wash: rinse the tank and nozzle under running water. To remove plaque, use a vinegar solution (1:3) or special tablets to clean coffee machines.

Pay special attention to silicone seals, which cannot be rubbed with hard sponges. If the seals have lost elasticity (become hard or sticky), replace them with new ones (Mijia article: MDZ-22-DC).

Remove the lid according to the instructions |Wash the tank with warm water |Wash the nozzle with a toothpick |Dry the details for 10-15 minutes |Check the seals for wear-->

Step-by-step instructions for filling Xiaomi soap box

Once the device is ready, we start pouring soap, and it is important to keep the sequence in order to avoid air traffic jams in the system. Below is a universal instruction that is suitable for most models (Mijia, Viomi, Yeelight):

1. Filling the tank: Pour the soap to the MAX mark (usually 200-300 ml). Don't add "a stock" - this increases the pressure on the pump. For thick gels, dilute them with distilled water (proportion 3: 1).
2. Installation of the tank: Place the tank back with the guide grooves. Make sure the feed tube is not twisted. Close the lid before you click. In the Viomi V3 Pro models, wait for the beep.

Verification of work

• Turn on the power and test the spraying. If the jet is intermittent, repeat the nozzle wash.
• When you first use after refueling, press the spray button 2-3 times to remove air from the system.

Attention! If the soapbox makes a buzzing sound after filling, but does not spray the product, the feed tube is probably clogged. Use a syringe with warm water (no needle!) to clean it, injecting the liquid in the opposite direction.

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If you use homemade soap (such as from a household soap), strain it through gauze before refueling. Small undissolved particles can block the pump valve.

Frequent mistakes in refueling and how to avoid them

Even experienced users sometimes make mistakes that shorten the life of the soapbox, and here are the most common ones and ways to prevent them:

• 🚫 Soap overflow: Excessive amounts create pressure, which causes the product to flow through seals. Always leave 5-10 mm of free space.
• 🚫 Use of undiluted gels: thick formulations (e.g. Sanitelle) require dilution with water in a 1:1 or 2:1 ratio.
• 🚫 Ignoring cleaning: Soap residues dry up on the walls of the tank, forming a film that becomes a breeding ground for bacteria.
• 🚫 Refilling with power on: This can short if soap gets on the contacts.

Another common problem is the wrong build, for example, in the Viomi V3, users often forget to install a gasket between the tank and the body, which leads to leaks. If the soapbox spits after refueling or gives out an uneven jet, take it apart and check:

• The density of the tube adjacent to the pump.
• Integrity of silicone seals.
• No air in the system (to remove press the spray button 5-6 times).

How to extend the life of soapboxes: tips for care

Regular maintenance not only prevents breakdowns, but also keeps the device hygienic. Xiaomi recommends a complete cleaning every 2-3 refueling stations, but in practice the frequency depends on the intensity of use:

• 🧽 Weekly: wipe the body and nozzle with a wet wipe with an antibacterial agent.
• 🔄 Every 2 weeks: Wash the tank with warm water (without detergents!).
• 🧪 Once a month: disinfect the system with acetic solution or special tablets (Durgol for coffee machines).
• 🔋 Every 3 months: Check the contacts of batteries (oxidation leads to poor contact).

For models with a UV lamp (for example, Viomi V3 Pro) additionally:

• 💡 Once a week, turn on the disinfection mode (button) UV) 3-5 minutes.
• 👁️ Don’t look at the lamp while working – UV radiation is bad for the eyes.

Attention! ⚠️ Never use abrasive powders or hard brushes to clean, which scratch the inside of the tank, causing bacteria to accumulate in microcracks. Only a soft toothbrush or silicone sponge is suitable for removing plaque.

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Using distilled water to dilute soap increases the life of the pump by 30-40%, as it prevents the formation of lime plaque.

Alternative Refilling Methods: What to Do When Original Soap Is Unavailable

Sometimes the original consumables for Xiaomi soaps are difficult to find or their price seems overpriced, in such cases, alternative means can be used, but with reservations:

1. Baby Liquid Soap (e.g. Johnson's Baby): ✅ Suitable for sensitive skin. ⚠️ Requires dilution with water (1:1), as it contains moisturizing additives.
2. Shower gel (such as Nivea or Dove): ✅ It's fine, it's economical. ⚠️ Choose options without oils and microparticles.

Homemade soap

• ✅ Environmentally and budgetically.
• ⚠️ Be sure to filter through gauze and dilute to the consistency of milk.

For models with a foam generator (for example, Yeelight Smart Foam Dispenser), only low foam soap will work. Foam formed by a conventional gel can clog the mechanism.

100 ml of Castilian soap (liquid)


200 ml of distilled water




5 drops of tea tree essential oil (optional)




Mix, let stand for 12 hours before refueling.

Xiaomi Soap Comparisons: Which Model Is Easier to Fill

If you haven’t bought a soapbox yet and want to choose a model that is easier to maintain, pay attention to the following criteria:

For families with children or the elderly, you'd better choose a Yeelight model, which is easier to open. If tank capacity is important, look at the Viomi V3, but be prepared for a more complex disassembly.

Tip: If you travel frequently, choose USB-powered soapboxes (such as the Xiaomi Mijia) that can be refilled on site without worrying about replacing batteries.

FAQ: Answers to Frequent Questions About Xiaomi Soap Filling