Drains in hospitals are not just a sanitary issue. Peer-reviewed literature — including in the Journal of Hospital Infection and Infection Control & Hospital Epidemiology — describes biofilm in traps as an environmental reservoir of resistant organisms such as Pseudomonas aeruginosa and carbapenemase-producing Enterobacterales (CPE), and documents dispersal of trap contents during water flow. Most of that literature concerns the traps of handwash basins and sinks. Green Drain™ is a physical one-way seal; in SGS laboratory testing it blocked >99.9 % of viral aerosols.
Hospital room, bathroom, intensive care unit — drains that go unused for longer periods become a stagnant environment in which biofilm grows unchecked. Peer-reviewed literature, including in the Journal of Hospital Infection and the American Journal of Infection Control, has documented healthcare-associated outbreaks linked to drains and traps.
According to data from the Croatian Institute of Public Health, the Croatian hospital system handles over 631,000 hospital admissions annually. Every room, every ICU unit, every washroom has floor drains that represent a potential vector for infection.
Statistical data were taken from official sources: State Statistical Office (data.dzs.hr) Croatian Institute of Public Health (hzjz.hr), Ministry of Labor, Pension System, Family and Social Policy (mrosp.gov.hr), Agency for Science and Higher Education (azvo.hr), Ministry of Tourism and Sports (mint.gov.hr). Regulatory framework: EUR-Lex for EU directives and regulations — Regulation (EC) No 178/2002 (general principles of food law), Regulation (EC) No 852/2004 (food hygiene — HACCP obligation), Regulation (EC) No 1935/2004 and Regulation (EU) No 10/2011 (food contact materials), Regulation (EU) No 528/2012 (BPR), Directive 2014/34/EU (ATEX). Standards: EN 1253-1 (floor P-traps, water seal ≥50 mm), EN 1253 Parts 6/7/8 (gullies with a water seal below 50 mm, with mechanical closure, and combined types; 2023 editions), ASSE 1072-2020 (floor drain trap seal protection devices) and NSF/ANSI 2 (food equipment). HACCP International RG-05 is a private certification programme operated by HACCP International, not an official certification issued by a public authority. Tourism data taken from the DZS publication for H1 2025, healthcare data from the HZJZ report 2024, data for education from DZS publications for the 2023/2024 and 2024/2025 school years, data for nursing homes from the MROSP report, and announcements of EU-funded construction in 2025. Revision date: May 2026.
Our technical team works with the epidemiologist, the chief nurse, and the technical service — from mapping to delivery.
The technician maps all drains (rooms, bathrooms, washroom blocks, kitchen blocks). We measure the internal diameter and the type of grate.
Written recommendation with sizes (GD 1.25 to GD 6), total number of pieces, and specification according to EN 1253-1.
We place samples in five representative rooms for seven days. Your infection control lead assesses the effect on swab results.
Your maintenance team can do a whole department in a day. No downtime, no plumber, and nothing to come back for.
Croatian hospitals are built according to EN 1253. P-traps in rooms and sanitary units are predominantly 1.5″ (38 mm) — the most common size. Operating rooms, sterilisation areas, and central kitchen drains are larger in size. A typical KBC facility requires four to five different sizes throughout the building.
Yes. The silicone material is resistant to sodium hypochlorite up to 5 %, quaternary ammonium compounds, isopropanol, and ethanol at standard hospital concentrations. A detailed chemical compatibility list is provided upon request.
Use a standard drain disinfectant. The seal is not taken apart or removed for cleaning — treat it exactly as you would a standard U-bend, with a visual check once a month.
The expected service life is about 5 years under normal use. ASSE 1072-2020 is tested for over 2,500 opening and closing cycles.
Green Drain™ doesn't work alone — for maximum drain control it's combined with GD Uri-Tabs™ (urinals) and GreenSwirl™ (drain unblocking).
Patented silicone seal for floor drains in washrooms, wards, operating theatres and ICUs. A mechanical barrier with documentation for infection prevention and control programmes.
Bio-enzymatic urinal tablets for public washrooms and clinics. They cut staff and patient exposure to the odour and bacteria that come with urinal scale.
Biological cleaning of biofilm in the drainage runs from hospital washrooms. Reduces the microbiome reservoir in P-traps and sewer pipes.
We come to the site, map the drains, and provide a written recommendation — no cost, no obligation.
