Index of FAQ about moisture

1-How to solve moisture on floor?

Moisture on the floor typically appears between tiles, leaving traces of saltpeter. If there is wooden parquet, it swells and becomes deformed.

Don't consider solving this issue by adding a waterproof layer under the parquet or tiles, as the weight of the construction material can eventually puncture it. Additionally, this solution is very costly in terms of labor and it can even lead to increased moisture in the walls.

An effective and long-lasting solution involves placing an HS-221 unit on the adjacent solid wall, which eliminates rising damp. If the moisture originates from a groundwater pipeline leak or a water tank with a level less than 50cm from the ground, these leaks must be resolved before proceeding with drying.

2-How can the moisture problem in foundations be solved?

The moisture known as foundation moisture is capillary moisture that rises from the foundation. Its solution is the same as for rising damp.

The redirection of underground streams should be carried out before construction, although this can pose challenges and incur costs.

The Electro-Physical solution is the most efficient, economical, and maintenance-free approach, resolving the issue within a few months, provided that the floor support is at least 10cm thick to facilitate the transmission of waves that repel water into the subsoil.

3-Is it suitable for drying basements or semi-basements?

In that scenario, if water isn't infiltrating through filtration, the moisture issue is effectively addressed. Apart from its bottom-to-top impact, it also influences sideways.

In this situation, it's recommended to use at least the HS-221a model.

When dealing with moisture in basements and ground floors, installing equipment in the basement resolves the problem on the ground floor as well, especially if they share load-bearing walls.

4-Which model is appropriate for my ground floor or basement?

The appropriate model is selected based on the square meters m2 of the ground floor or basement, regardless of its shape.

Depending on the model, the HS-221 effectively dries areas ranging from 50m2 to 2500m2 with single units available in sizes of 50, 100, 150, 200, 300, 400, 1250, 2500m2.

Kindly refer to the table of features and comments located in the HS-221-system section.

5-What is the process for purchasing equipment to eliminate capillary (rising-damp)?

The process is simple:

You provide us with your information via email at, allowing us to generate a proforma invoice.

We send you the proforma invoice along with the necessary account details for your transfer.

Upon sending us a copy of the payment confirmation via email after the transaction is completed, the HS-221 will be promptly dispatched and is expected to arrive within 2 days.

6-How is the equipment for removing capillary moisture (rising damp) installed?

The installation process is straightforward, involving these steps:

Drill two holes in the wall, approximately 30cm from the floor, using a 5mm drill bit. Place the provided anchors at a distance of 10cm between them. Insert the two brackets, leaving a 3mm gap from the wall, and mount the HS-221 unit as if it were a picture.

Connect it to the power supply using the provided adapter. The unit's red LED will illuminate to indicate power reception, while the green LED will signify correct operation.

Observe that these LEDs remain lit over time to ensure effective removal of capillary moisture.

7-Where is the Electro-Physical System HS-221 installed to address capillary humidity (rising damp)?

If you determine that the moisture is spread across the entire house and the floor plan is rectangular, the placement of the unit would be toward the middle of the longest outer wall, specifically in an area affected by moisture.

You can shield the unit with a non metallic box or install in within a wall-embedded cabinet.

If the moisture is concentrated in a specific area, apply the mentioned criterion for that region. Its crucial to position the HS-221 on a main wall affected by rising damp.

If the moisture is concentrated in an area, apply the criterion in that area, it is important to place the HS-221 on a master wall with rising damp.

8-How long does it take to dry damp walls from the subsoil capillarity?

For basements constructed with bricks or concrete blocks, the walls can be dried in under 4 months.

Conversely, for thicker walls composed of stones, a mixture of concrete, sand, and other materials often found in traditional village houses, the drying process may take up to 9 months. In such cases, electro-osmosis systems would require a minimum of 2 years.

9-What guarantees are provided for drying moisture in ground floors and basements?

Humitat-Stop provides a 30-year warranty that covers free repairs for any malfunctions, along with a satisfaction guarantee. If you're not satisfied within the first year and before the second year, we offer a refund of the amount paid.

10-Does it cause interference with Wi-Fi, alarms, radio or television?

The HS-221 adheres to electromagnetic compatibility regulations and does not cause interference with alarms, WiFi, radio, TV, or pacemakers.

Its transmission primarily occurs through walls and floors, with minimal transmission through the air.

11-How much energy does the equipment consume after one year of continuous operation?

The equipment has an extremely low consumption of 0.7W, which is negligible.

Despite the need for continuous operation, it costs less than €10 per year. In one year, the HS-221 consumes less than what a television uses in a day.

12-What happens if the power goes out?

This equipment continually counteracts the physical effects of capillarity and doesn't have any consequences in the event of a power interruption. However, if the current is absent for more than 15 days, capillary moisture could reappear.

Since it's powered by a converter that transforms alternating current into 12VDC, this equipment can also be operated using solar cells with a rechargeable battery to provide 12VDC power during the night.

13-Why the electro-physical system better than electro-osmosis?

The electro-osmosis system emits radio frequency signals (2MHz) through the air, which have difficulty penetrating walls, especially if they are thick.

In contrast, the HS-221 system emits low-frequency signals (1.2kHz) that transmit very effectively through solids, particularly when they are damp, like the walls and floors of a building. As a result, we can achieve drying rates that are 4 times faster than those of the electro-osmosis system.

Another crucial piece of information is the equipment's consumption, which stands at a mere 0.7W. In contrast, electro-osmosis systems typically consume around 14W, impacting their overall lifespan and leading to a reduced warranty period of 7 years. This stands in stark contrast to the HS-221, which provides an extended warranty of 30 years. Furthermore, the HS-221 operates without generating heat, contributing to its exceptional reliability.

14-How can a damp wall be rehabilitated?

The initial step involves drying the wall affected by capillary moisture (rising damp), followed by the elimination of salts that manifest on the surface. This can be achieved through gentle brushing, using rags, or employing chemical solutions. However, when substantial wall damage is caused by moisture, we strongly recommend wall repair. This recommendation is particularly relevant if the wall's plaster has absorbed moisture and consequently deteriorated, transforming into a hygroscopic material that absorbs ambient moisture, leading to surface dampness even though the interior of the wall is dry.

Damaged areas should be meticulously restored using high-quality lime mortar. In cases where paint is involved, silicate paint is recommended for application.

Occasionally, restoration work commences about fifteen days after the installation of the equipment, utilizing top-grade lime mortar. It is important to acknowledge that over time, inconsistencies in wall appearance may arise.

15-Why is lime mortar alone insufficient to dry the walls?

In current times, certain restorers have attempted to address capillary moisture by employing substantial layers of lime mortar (1cm), preceded by an adhesion-enhancing layer applied to the wall.

Although this approach temporarily delays the effects of capillary moisture for up to 3 years, it eventually leads to a recurrence of the issue. This recurrence occurs when the water-dissolved salts saturate the mortar layer, reinitiating conflicts.

Lime mortar serves as a suitable complement for combating capillary moisture, as it enables immediate wall restoration. Within a span of 4 months, the walls will be thoroughly dried and will not be saturated with salts, thereby preventing the formation of chips. Consequently, the thickness of the lime mortar layer can be reduced to a mere 5mm.

16-How can mold be removed from the walls?

The initial step in addressing the issue is the eradication of mold, given its potential health risks, including allergies, rheumatism, and asthma.

In addition to commercial anti-mold products, there exists a home made solution involving the use of a spray bottle filled with a mixture of 4 parts water and bleach. This mixture can then be sprayed onto the affected areas of the wall.

However, it's important to note that if the underlying moisture issue is not resolved, mold is likely to reappear.

When applying this solution, it's crucial to exercise caution. Protective gloves and eyewear should be worn, along with clothing that provides full coverage.

17-What if the water table is too high?

This equipment effectively counteracts capillarity; however, it does not reduce the water level in the vicinity.

Based on our experience, we've found that it performs optimally when the distance between the ground and the water level exceeds 50cm.

18-How does the geomagnetic system operate?

The geomagnetic system operates by utilizing the Earth's magnetic field. Through the use of a coil and a capacitor, it shifts phase to counteract this field, thereby inhibiting the ascent of moisture created by water molecule dipoles along the walls.

Despite not consuming electricity, this system's efficacy is notably limited due to its variable intensity and frequency. In optimal scenarios, it requires up to 3 years to effectively dry the walls. In contrast, the HS-221 accomplishes the same task in less than 4 months.

19-Does it effectively address condensation dampness?

This device is primarily designed to address rising damp. However, when used in ground floors and basements, it significantly diminishes moisture caused by capillarity-driven processes, thereby also alleviating moisture stemming from condensation.

For instances where condensation-related moisture remains prominent, its resolution involves improving ventilation within the affected area. This can be achieved by periodically refreshing the air on that level and employing an extractor whenever steam is generated through activities such as cooking or showering.

20-What is your perspective on using dehumidifiers for ground floors or basements?

Using dehumidifiers to address capillarity-induced moisture is a grave misjudgment, as it exacerbates the issue. Capillary action causes water to move upwards through walls, with a portion of it evaporating from the wall's surface.

Introducing a dehumidifier amplifies this evaporation process, subsequently enhancing the upward movement of water. This forms a detrimental cycle that drains the accumulated water from the dehumidifier, yet fails to rectify the root problem. Moreover, this process accelerates the deterioration of walls.

How to Remove Moisture in Ground floors and Basements?

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The most effective solution to remove moisture by capillarity (rising damp)

HS-221 represents the groundbreaking, revolutionary solution that definitively, rapidly, and significantly more affordably eradicates the source of capillary-driven moisture.
solution to the rising damp in ground floors and basements
BEFORE Wall with rising damp before applying HS-221
AFTER 9 MONTHS Removed moisture by capillarity from the walls after installing the HS-221
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Certificates of Approval of HS-221

Certificate CE

Certificate FCC

Certificate ICNIRP


Certificate CE

Certificate ROHS