Squat toilets for public bathrooms

• Why choose squat toilets
• Types available
• How to choose the right product
• Regulations and requirements
• Frequently Asked Questions

The prevalence of squat toilets in public bathrooms addresses specific technical and management needs. Firstly, the single-cell structure eliminates complex components such as cisterns, floats, and regulating valves, significantly reducing malfunctions and blockages during operation. The absence of a seat facilitates cleaning and disinfection, which is particularly relevant in environments where user flow is high or variable. Stainless steel guarantees natural corrosion resistance even in the presence of aggressive chemical agents used for professional sanitization. Furthermore, this type of sanitary fixture is particularly effective in limiting accidental flooding and allows for quick replacement in case of damage, being a standardized component. The pan's geometry facilitates natural hydraulic drainage, reducing the need for high flow rates and simplifying plumbing connections.

In public management contexts, operational simplicity represents a concrete economic advantage. The lower purchase cost compared to modern seated toilets, combined with very low maintenance costs and the absence of specific spare parts, makes this fixture particularly suitable for organizations with limited budgets and a priority on operational reliability. The technology also allows for the integration of functional options such as non-slip platforms for user safety or folding shower trays, transforming the toilet into a multifunctional station where necessary. Decades of use have consolidated many administrations' preference for this robust and predictable solution.

The range of squat toilets for public bathrooms varies primarily according to the installation system and dimensional configurations. Floor-mounted models represent the simplest and most versatile solution, requiring only a hydraulic drainage connection without the need for complex structural preparation. These are positioned directly on the flooring and are ideal for retrofitting existing bathrooms. Dimensions typically vary from 590x670 mm for compact models up to 900x900 mm for more generous versions, allowing adaptation to narrow spaces or environments with greater freedom of movement. Recessed models, on the other hand, are partially housed within the floor structure, offering a more integrated aesthetic and reducing edges that could cause accidental injury. The recess depth varies depending on the geometry of the substructure and the technically available spaces.

From a material perspective, AISI 304 stainless steel is the standard for most public applications, offering an excellent balance between corrosion resistance and cost. A satin finish is particularly preferred as it reduces the appearance of fingerprints and surface scratches during repeated cleaning operations. AISI 316, containing molybdenum, guarantees even higher resistance in particularly aggressive environments or coastal areas where atmospheric salinity accelerates corrosion. Some models integrate non-slip platforms in rubber or embossed steel, a critical element for preventing falls in humid and high-traffic environments. Versions with a folding shower tray represent a functional evolution, combining personal hygiene and toilet drainage in a single solution, particularly common in community or healthcare contexts. Steel thickness varies according to the product, with standard versions around 1.5-2 mm and reinforced models up to 3 mm to guarantee durability in extremely intensive use conditions.

Choosing a squat toilet for a public bathroom must first consider the usage context and expected traffic. For environments with occasional passage, such as small community bathrooms, a standard floor-mounted model in AISI 304 steel is sufficient and economical. For high-traffic facilities, such as schools, public centers, or transit stations, it is advisable to opt for models with a satin finish and robust thickness, possibly in AISI 316, which guarantee superior longevity under mechanical and chemical stress. The dimensions of the pan must be proportionate to the available space and the expected user size: 750x750 mm models represent a common compromise, while 600x670 mm versions are preferred in tight spaces and 900x900 mm models guarantee greater comfort in generous environments.

A critical aspect concerns the drainage system and available hydraulic pressures in the facility. The drain diameter is generally between 100 and 102 mm, a standardized configuration compatible with most public sewer networks. However, it is essential to verify the supply water pressure in advance: if it is less than 0.5 bar, it may be necessary to install an accumulator to ensure effective flushing. The choice between floor-mounted and recessed models depends on the bathroom structure: floor-mounted models simply require floor preparation and a hydraulic connection, while recessed ones need preliminary structural preparation with the creation of specific compartments. The most frequent error is underestimating the importance of the non-slip platform in public environments, where the risk of falls represents a significant legal liability. For bathrooms intended for elderly or disabled users, the folding shower tray option offers significant functional inclusivity, albeit with a higher initial investment.

Squat toilets for public bathrooms must comply with well-established technical and regulatory standards in the sanitization and plumbing industry. The UNI EN 997 standard specifies the functional and safety requirements for squat-type toilet pans, defining parameters for flushing water flow, material mechanical resistance, dimensional tolerances, and discharge tests. The UNI EN 997-1 standard also requires squat pans to resist a hydrostatic pressure of at least 0.5 MPa, a condition that guarantees structural robustness even in the presence of abnormal system pressures. Stainless steel material must meet the chemical composition criteria of the ASTM A240 standard, certifying the content of iron, chromium, nickel, and molybdenum for the respective AISI 304 and AISI 316 classes.

From a hygiene and sanitary perspective, public bathrooms containing squat toilets must comply with the natural or mechanical ventilation criteria provided by UNI 10844, ensuring effective air exchange for the control of odors and biological contaminants. The satin finish of the steels represents not only an aesthetic but also a functional choice, as it reduces biofilm accumulation and facilitates cleaning using low-corrosivity detergents. Non-slip platforms must have a dynamic friction coefficient of no less than 0.40 according to the ASTM F1679 standard, a critical requirement for accident prevention in humid environments. Hydraulic connections must use fittings certified for food use, avoiding alloys containing lead or cadmium. Technical documentation must include certificates of conformity issued by Accredia-accredited laboratories, ensuring traceability and manufacturer responsibility. For facilities intended for disabled users, the prescriptions of the UNI 9500-1 standard regarding accessibility remain valid, although squat toilets are not specifically contemplated in this category. Routine maintenance should involve non-acidic disinfectants for steel surfaces, preferably diluted hypochlorites or hydrogen peroxide, to avoid localized corrosion.