The Adriatic Hotel closes in October and reopens in April. Six months without water through the traps—each one is dry. First guests: "Room 312 smells like sewage." TripAdvisor review—forever. Green Drain™ solves this problem in 30 seconds per trap.
Hotels in Rovinj, Opatija, Split, Makarska, Dubrovnik. Close on October 15, open on April 15. For six months the toilets remain dry. The first guests are greeted by the scents wafting from every bathroom.
According to the State Statistical Office, Croatian tourism in 2024 achieved 85 million overnight stays by foreign tourists. In the first 6 months of 2025, 22.6 million overnight stays by foreign tourists were recorded, a 3.2% increase compared to the same period in 2024. Commercial accommodation has 1.2 million permanent beds and 82,000 hotel rooms—all following the same seasonal opening and closing cycle.
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 — EU 2017/745 (MDR), EU 178/2002 (food safety), EU 1935/2004 and EU 10/2011 (food contact materials), EU 528/2012 (BPR), EU 2014/34 (ATEX). Standards: EN 1253-1 (floor P-traps, water seal ≥50 mm), EN 1253 Parts 6/7/8 (mechanical seal failures, 2023), HACCP Internacional RG-04, ASSE 1072-2020, NSF/ANSI 2. 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.
Hotels on the Adriatic run a pre-season service in April/May. Green Drain™ installation takes 30 seconds per drain—an entire hotel in one day with a small crew.
At the end of the season, the technician maps all the P-traps, takes measurements, and photographs.
Object-specific specification — opening bid and season inventory.
Pre-season pilot in five rooms — the front desk is logging complaints.
One day of coordinated work with the technical service.
Croatian hotel construction: 3-star to 4-star properties have DN50 in the rooms (GD 2), while 5-star properties and premium boutique hotels often have DN65 (GD 2.5) for deeper P-traps. The food & beverage, wellness, and technical areas use larger sizes. Adriatic hotels feature glamping cabins, mobile homes, and apartments within the complex — each type has its own specification.
Yes. The seal has a 5-year lifespan under normal use—covering five consecutive seasons. Visual inspection once before each season.
Ideal solution. Glamping and mobile homes use standard 2″ P-traps — the GD 2 fits, stays in place, and runs the entire season without intervention.
Absolutely. Apartments that close down in the off-season usually have the exact same problem. Owners who use Booking and Airbnb appreciate the absence of negative reviews.
Green Drain™ doesn't work alone — for maximum drain control it's combined with GD Uri-Tabs™ (urinals) and GreenSwirl™ (cleaning).
Patented silicone P-trap seal for all drains in rooms, bathrooms, and wellness centres. With no water in the P-trap, there's no route for H₂S and E. coli into the guest's room.
Bio-enzyme tablets for all urinals in the lobby, wellness, and F&B facilities. Eliminates urinal scale and odour — fewer guest complaints, less drop in return on investment due to poor reviews.
Bio-cleaning of kitchen and wellness drains. It breaks down biofilm deeper in the system — an additional layer of protection for the food and beverage segment of the facility.
We come to the site, map the drains, and provide a written recommendation—no cost, no obligation.