Hydrogen sulfide and other sulfide gases from the drain biofilm cause "creep corrosion" on the motherboard's gold contacts and silver solder joints. It appears months after the problem begins. Green Drain™ eliminates the H₂S source — a safety measure for uptime.
ASHRAE TC9.9 and Telcordia GR-63 specify limits for corrosive gases in data centres. Conditions in the building can exceed the allowable limits if drain biofilm is not under control.
ASHRAE TC9.9 and Telcordia GR-63-CORE specify limits for the data centre environment. The Uptime Institute rates reliability from Tier I to Tier IV. ANSI/TIA-942 additionally prescribes environmental controls. EU GDPR and the Croatian GDPR Act drive the need for local data centres.
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.
The data centre doesn't allow improvisation. Everything goes through formal change management and a maintenance window. Our installation takes 30 minutes per restroom.
Data centre drainage system overview — where the P-traps are in relation to the machine room.
Sanitary fixtures and corridor — 30 days, measurement of H₂S and SO₂.
Formal process — enters the maintenance schedule.
Maintenance window — one per restroom every 30 minutes.
Croatian data centres (Combis, A1, HT, Span, S&T, Altus IT, MainStream) are built to Tier II–IV standards. Sanitary and staff auxiliary rooms are built conventionally (DN50). The mechanical zone, CRAC rooms, and UPS rooms are the technical side—required to withstand temperatures up to +60 °C in hot aisles.
We are sending the technical documentation, EN 1253 compliance, and the ASSE 1072-2020 report. The auditor is requesting proof that the risk of corrosive gases is controlled—the drainage system is part of that control.
Yes. Pre-installation and post-installation measurements of H₂S, SO₂, and CH₄ at strategic points in the area.
Green Drain™ doesn't work alone — for maximum drain control it's combined with GD Uri-Tabs™ (urinals) and GreenSwirl™ (cleaning).
Patented silicone seal for floor drains in mechanical rooms and restroom facilities. ASHRAE TC9.9-compliant design that does not disrupt the temperature profile.
Bio-enzyme urinal tablets for operating room restrooms. No volatile chemicals that could enter the HVAC system.
Biofilm cleaning in the sewer systems of administrative zones. No aggressive chemicals that corrode metals (H₂S is the source of the problem).
We come to the site, map the drains, and provide a written recommendation—no cost, no obligation.