How to fill up the dispenser of Xiaomi soap: the complete guide

Xiaomi’s automatic liquid soap dispensers and the Mijia ecosystem have become a popular element of bathrooms thanks to their stylish design and foam spraying technology. However, many users face difficulties in their first attempt to replenish their supply, as the design of these devices is significantly different from the usual mechanical pumps. Incorrect refueling can lead to clogging of the tube or break the foam supply mechanism.

In this article, we will discuss in detail the maintenance process of various models of automatic dispensers, including popular versions of Yuemi, Simpleway and the original Mijia Automatic Foam Soap Dispenser. You will learn what proportions to observe when diluting concentrate, how to avoid the appearance of air traffic jams and what means should not be absolutely poured into a smart dispenser.

Preparation for refueling and selection of consumables

Before you start the procedure, you need to make sure that you have everything you need on hand. The main requirement for the foaming agent to work properly is to use a liquid soap with the correct consistency. Too thick gels or products with large abrasive particles can instantly clog the thin nozzle of the sprayer, after which the device will require a complex wash.

The best solution is to use special interchangeable units, which are produced under the Mijia brand or compatible analogues from Simpleway. They already have the right viscosity and contain the optimal amount of surfactants to create a thick foam. If you prefer to use ordinary liquid soap, it will have to be pre-diluted with water in strictly defined proportions, which we will talk about below.

🧴 Special replacement unit or low viscosity liquid soap.
💧 Distilled or filtered water for diluting concentrate.
🧻 Paper towels or napkins for wiping contacts and neck.
🔋 New batteries (usually 4 AA type) if the current charge is running out.

⚠️ Warning: Never use soap with oil content above 5% or dishwashing products.The oil film settles on the inner parts of the foaming agent, disrupting the mesh filter and causing the valve to stick.

It is also important to check the condition of the battery compartment before work begins. Oxidized contacts can cause the dispenser to stop responding to the arm immediately after assembly. Wipe the contacts with a dry cloth and make sure that the springs are not deformed. USB-Make sure the port is dry and has no corrosion traces.

Step-by-step: how to open and fill the dispenser

Most Xiaomi models are unified in their refueling process, but they have their own nuances depending on the type of tank attachment. In classic models, the top with the motor and sensor is removed by turning counterclockwise. Newer versions can use a latch system or a retractable mechanism. Act carefully, without excessive effort, so as not to break the plastic locks.

When you take the top off, you'll see the inner glass bulb, which is where you put the mixture, and it's critical that you don't transfuse the liquid above the MAX mark, which is usually located on the inside of the bulb or on the body of the motor unit, and you get the excess of the liquid into the electronics compartment when you twist the lid.

☑️ Refueling checklist

Remove the top part by turning or pressingWash the flask with warm water if you change the type of soapPour the mixture to the mark MAXTightly twist the lid until clicked

Done: 0 / 4

When the bulb is full, carefully place the top unit in place. If the model requires a turn, turn it to the characteristic click or matching of marks. In vertical immersion models, simply snugly insert the unit to the end. After assembly, the device usually emits an audible signal or flashes an indicator to indicate readiness for operation.

Dilution proportions: the formula of the ideal foam

The most common question owners ask is how much to dilute regular soap. The standard ratio for a quality foam is 1 part soap per 7-10 parts water. However, this figure can vary depending on the initial density of the product and the hardness of the water used. Hard water foams worse, so the concentration of surfactants can be slightly increased.

Use warm water (about 30-40 degrees) to prepare the mixture, as the soap dissolves more quickly and evenly.Mix the solution carefully in a separate container before pouring, avoiding excessive foam on the surface, which can create an air stopper in the fence tube.

Type of instrument	Proportion (Soap: Water)	Recommended water temperature	Expected output
Special concentrate Xiaomi	1:0 (ready for use)	Anybody.	Perfect thick foam
Medium viscosity liquid soap	1: 7	30-40°C	Stable foam
Thick shower gel	1: 10	40-50°C	Air foam
Baby soap without fragrance	1: 8	35-40°C	Soft foam

If the foam is too liquid and drains quickly after the first filling, reduce the amount of water at once. Conversely, if the device is buzzing, but the foam does not go or comes out in clumps, the mixture is too thick and requires additional dilution.

Why can foam be liquid?

If the foam is too liquid, it may not be just proportional. Check the mesh filter at the exit of the engine unit. If it's contaminated with residues of old soap, the air mixes with the liquid incorrectly. Also, the reason can be low battery charge - the motor does not have enough power to create the desired pressure. Removal of air traffic jams and pumping system After refueling or a long pause in use inside the tube of the fluid intake can form an air traffic jam. In this case, the sensor will go off, the motor will buzz, but the soap will not be squeezed out. To fix this problem, you need to perform a pumping procedure, remove the top of the dispenser from the bulb, leaving it in a horizontal position above the sink. Press the sensor several times in a row (usually required) 3-5 activation), until a stable stream of foam without "spitting" air goes out of the nose. Make sure the bottom end of the tube is immersed in the liquid, otherwise you will just pump air. 🔄 Hold the button (if there is manual mode) for a period of time. 5-10 force-pumping. 💨 Shake the device (without sudden movements) to shift the air bubble upwards. 🌊 Lower the fence tube into warm water and pump the system to soften possible dried residues. ⚠️ Warning: Do not allow water to enter the body of the motor unit during washing. Xiaomi electronics do not have moisture protection according to the standard IPX7, So you can wash the tap only with the removable flask and the bottom, and you can disconnect the mechanical part beforehand. For example, the Simpleway model often has a removable spray nozzle that can be unscrewed for more thorough washing with hot water, a useful feature that allows you to completely remove the frozen gel from the outlet. Yuemi series models can be equipped with IR sensors with adjustable sensitivity. If after refueling the dispenser began to fire spontaneously or, conversely, does not respond to the hand, check whether you have blocked the sensor area during assembly with your finger or flask edge. You should also wipe the IR port with a soft cloth. USB-It is important to monitor the tightness of the port plug before charging, check before each refueling whether the rubber cover is tightly closed, since getting soap solution into the connector can cause a short circuit when connecting to the network. Regular cleaning and prevention of blockages To serve long, it must be cleaned periodically, even if you use the same soap. 2-3 To do this, empty the flask, pour warm water and activate the pump several times to drive clean water through the system. If you notice that the foam has begun to come out unevenly, soak the removable parts (flag, tube, nose) in a warm solution of citric acid or vinegar on the 15-20 This will help dissolve the limestone plaque that inevitably forms when tap water is used. 💡Use distilled water to soap — this will significantly reduce the scale formation inside thin tubes and prolong the life of the mesh filter motor. Dried drops of soap can block the IR ray or glue the foam exit valve, creating the illusion of a device breakdown. 💡Regular prophylactic water washing takes 1 minute, but prevents 90% of the breakdowns associated with clogging of the foam supply system (FAQ) Can you put regular liquid soap in the Xiaomi dispenser without dilution? No, regular soap is too thick for the foaming agent. The pump will not be able to pump it through the grid, which will overload the engine and break down. Be sure to dilute it with water in a ratio of at least 1:7. Why did the dispenser stop working after filling? You probably have a tube jam or a soap in your nose has dried up. You can try pumping the system several times or soaking the spout in warm water. You can also check the battery charge. You can tell if the batteries need to be changed? The indicator on the body will start flashing red (or yellow, depending on the model). Also a sign of discharge is a weak foam pressure or a fuzzy sensor response. Can I use antibacterial soap with chlorine? Aggressive components such as chlorine can damage plastic seals and rubber pads inside the mechanism. It is better to use soft products with a neutral pH. What to do if the soap is out and there is no distilled water on hand? You can use boiled and cooled tap water.