Owners of the Mijia smart home ecosystem often face the need to save supplies, especially when the original cartridges are running out and new ones are expensive. Self-cooking liquid soap allows you to not only significantly reduce costs, but also use natural components that do not cause allergies. However, for a smart dispenser to work correctly, the consistency of the solution must strictly comply with the technical requirements of the device.
In this article, we will detail how to create the perfect mixture that will not clog the pump and will foam properly when activated by the infrared sensor. You will learn about the right proportions, safe ingredients and nuances of adjusting the sensitivity of the sensor for different types of fluids.
Requirements for consistency and viscosity of solution
Smart dispensers like the Xiaomi Mijia Automatic Induction Soap Dispenser are equipped with a peristaltic pump that is sensitive to the viscosity of the fluid being pumped. If you pour too thick a gel, the motor will overload, causing the battery to quickly discharge or the mechanism to fail. Conversely, excessively liquid water will flow out of its course or give a weak jet without providing the desired volume of foam.
Optimal viscosity should be comparable to medium-density store liquid soap. It is critical to achieve a water-to-base ratio of about 3:1 or 4:1 so that the liquid can flow freely through the narrow tubes of the pump. You can check the readiness of the mixture visually: it should flow slowly off a spoon, but not stretch with long threads like glue.
For the exact dosage of components, it is recommended to use a measuring cup or kitchen scales. Do not rely on the eye, especially in the first experiment, since an error in proportions may require a thorough washing of the entire dispenser system.
- 💧 Use distilled or boiled water to prevent scaling.
- 🧴 The base should be liquid, not creamy structure.
- 🌡️ The temperature of the components when mixing should be room temperature.
- 🧪 Avoid adding solid particles (scrabbing elements, herbs).
⚠️ Note: It is strictly forbidden to use soap chips or solid soap dissolved in water, as they can freeze in the tubes and permanently block the pump.
Choosing Safe Ingredients for the Basis
The basis for homemade soaps can be a concentrate intended for dilution, or ordinary liquid soap, which you just want to make more economical. It is important to choose products with a neutral pH, so as not to damage the plastic elements of the reservoir and silicone seals. Aggressive alkaline compounds can destroy the bulb material over time.
If you prefer natural products, Castilian soaps or special baby soap bases are a great choice, they dissolve easily in water and give a plentiful foam, which is critical for a dispenser foaming agent. You can also use ready-made concentrates for washing dishes, but their concentration will have to be reduced more strongly than that of specialized hand products.
When choosing flavors, give preference to water-soluble essences. Oil extracts may not mix with water and form a film on the surface that will interfere with the level sensor or simply look ugly.
- 🌿 Natural bases on plant clay or glycerin.
- 👶 Hypoallergenic children without fragrance.
- 🍋 Essential oils in minimum dosages (no more than 5 drops per 100 ml).
- 🚫 Avoid products with alcohol content above 10%.
When experimenting with formulations, always test a new solution on a small area of skin to rule out an allergic reaction, especially if new components appear in the composition.
Step-by-step instructions for preparing a mixture
The process of preparing the working solution requires a sequence of actions to avoid the formation of lumps and the ensure homogeneity of the mass. First, the main part of the water is poured into the clean container (about 75% of the total volume), the water must be warm, but not hot, to accelerate the dissolution, but not damage the structure of the detergent components.
Then gradually add a soap base. Mixing should be slow, light circular movements. You can't beat the mixture until it's thick foam, because it's the liquid that must enter the dispenser tank, not the air emulsion, otherwise the first portion will be air.
☑️ Preparation checklist
After mixing, allow the solution to stand for 10-15 minutes, which is necessary to release air bubbles that may have formed during stirring, the presence of air in the pump tubes can cause the dispenser to spit or give out a discontinuous stream.
| Component | Proportion (%) | Function | Features |
|---|---|---|---|
| Distilled water | 70-80% | Solvent | Reduces viscosity |
| Liquid base | 20-25% | Cleaning agent | It foams. |
| glycerol | 5% | Emollient | Moisturizes the skin |
| conservant | normally | Protection | Prevents bacteria |
Sensitivity adjustment
After pouring the solution into the Xiaomi tank, you need to make sure that the device responds correctly to the movement of the hands. In some models, such as (first generation) or newer versions of the Pro, calibration may be required. Usually it is automatic, but if the soap is too transparent or, conversely, the sensor may not work properly.
If the dispenser is triggered too often or does not react the first time, check the cleanness of the infrared sensor window. Dirt or soap drops on the front panel can distort the signal. Wipe the surface with a soft dry cloth without pile.
The secret to calibrating the sensor
Also, you should pay attention to the angle of the dispenser installation, if it is on an inclined surface, the fluid level may not block the inlet of the tube, which will lead to air capture. Make sure that the device is strictly vertical.
- 👁️ Wash the IR sensor with each fluid replacement.
- 🔋 Use high-quality alkaline batteries for stable voltage.
- 📏 Keep your distance. 3-5 citation.
- 🔄 Do not hold your hand under the sensor for more than 5 seconds.
Prevention of blockages and care of the device
The durability of a smart dispenser depends on regular maintenance, and even with quality components, over time, plaque can form on the walls of the tubes and the pump, especially if you use tap water containing stiffness salts.
It is recommended to carry out preventive washing of the system every 2-3 months or at each change of soap type, to fill the tank with warm water, and the device is switched on in continuous operation mode (if such a function is available) or simply activated repeatedly over the sink until clean water goes.
⚠️ Warning: Never immerse the main electronics and battery compartment in water, only the removable tank and the fluid intake tube can be washed.
If you notice that the jet has become weak or intermittent despite a full tank, check the outlet for dried residues. Carefully clean it with a thin needle or toothpick, trying not to damage the foaming agent mesh.
Addressing common problems
Users often experience a situation where the dispenser is buzzing but not delivering soap, which means 90% of the time there is a traffic jam in the system, so to eliminate it, turn the dispenser upside down for a few seconds until the liquid comes to the pump, then quickly return to its original position and activate the sensor.
Another common problem is the quick discharge of batteries, which may be due to the use of too thick soap, which creates high resistance for the motor, try adding another 10-15% of water to your solution and check the operation of the device.
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To extend the battery life, switch the dispenser to energy saving mode (if the model supports the Mi Home application), reducing the frequency of the sensor survey or turning off the LED indication.
If the device makes strange sounds or vibrations, immediately stop using and check the mechanical integrity of the internal tubes.
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The main secret of success is the balance between viscosity and detergent ability: too liquid soap does not foam, and too thick kills the motor.