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Data Centers · Tier III/IV · Colocation

H₂S from the drain.
Corrosion on the PCB.
SLA at risk.

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.

EN 1253ASSE 1072-2020ASHRAE TC9.9Aware of Tier III/IV
>99,9%
H₂S barrier
Tier IV
Standard
5 years
Life
0
Maintenance
Problem & solution

What do they say? ASHRAE and Telcordia.

ASHRAE TC9.9 and Telcordia GR-63 specify limits for corrosive gases in data centers. Conditions in the building can exceed the allowable limits if drain biofilm is not under control.

Without Green Drain™

  • H₂S above ASHRAE thresholds — G2/G3 classification exceeding IT equipment specifications
  • Creep corrosion on gold connectors — appears months after exposure
  • Silver solders and copper traces exposed to sulfides — reliability degradation
  • SLA violation due to hardware instability caused by the environment
  • Tier III/IV facilities require a documented plan for controlling the atmosphere within the space.

With Green Drain™

  • Hermetic barrier — H₂S, SO₂, CH₄ remain in the sewer
  • Helps maintain an ASHRAE TC9.9 G1 atmosphere
  • Resistant to temperatures up to 100 °C — compatible with hot aisles
  • Chemical-free — safe for sensitive IT equipment and cleanroom
  • Documentation for Tier III/IV revision — compliance with EN 1253 and ASSE 1072
Standards and framework

Sector with strict standards

ASHRAE TC9.9 and Telcordia GR-63-CORE define limits for the data centre environment. The Uptime Institute rates reliability Tier I to Tier IV. ANSI/TIA-942 prescribes environmental controls. EU GDPR and Irish data residency drive demand for local hyperscale capacity — Ireland hosts one of Europe's most concentrated data centre clusters.

ASHRAE TC9.9
Standard for Data Center Atmosphere
Telcordia GR-63
CORE — telecommunications equipment
Tier I-IV
Uptime Institute reliability classification
EU GDPR
Regulation is driving local data centers — market growth
American National Standards Institute/Telecommunications Industry Association 942
Data Center Standard — Environmental Controls
EN 1253
EU standard — also applies to DC P-traps
Data Sources and Regulatory Framework (2024–2025 data)

Statistical data taken from official Irish and EU sources: Central Statistics Office Ireland (cso.ie), Health Service Executive (hse.ie), Failte Ireland (failteireland.ie), Bord Bia (bordbia.ie), IDA Ireland (idaireland.com), Health Products Regulatory Authority (hpra.ie). Regulatory framework: EUR-Lex for EU directives — 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 International RG-04, ASSE 1072-2020, NSF/ANSI 2, HSE SARI guidelines. Revision date: May 2026.

Implementation

Procedure through change management

The data center doesn't allow improvisation. Everything goes through formal change management and a maintenance window. Our installation takes 30 minutes per restroom.

01

Technical analysis

Data center drainage system overview — where the P-traps are in relation to the machine room.

02

Pilot zone

Sanitary fixtures and corridor — 30 days, measurement of H₂S and SO₂.

03

Change management

Formal process — enters the maintenance schedule.

04

Implementation

Maintenance window — one per restroom every 30 minutes.

Model Recommendation

Recommendation per zone in the data center.

Irish data centres (Meta, Google, Microsoft, AWS, Oracle, Equinix, EdgeConneX) are built to Tier II–IV standards. Sanitary and staff areas use conventional DN50. Mechanical zones, CRAC rooms and UPS rooms are the technical side — silicone seals withstand up to +60 °C in hot aisles.

Green Drain™ Recommended for your industry.

  • Sanitary facilities and staff auxiliary rooms (NOC)GD 2The most critical zone — H₂S from the toilets must not enter the machine room.
  • Technical basement and UPS roomsGD 3. ASHRAE TC9.9 G1 atmosphere (H₂S <10 ppb).
  • CRAC plant room and chiller zoneGD 4Condensation, resistance to damp, cold conditions.
  • Central grooves on the technical floorGD 5 or GD 6High volume of leakage from the HVAC system.
💬 Not sure of the exact size? Send us a photo of your sink drain — our technical team will respond with a written recommendation within the same business day, free of charge.
Check out Green Drain™ → Request a quote
GD 2
DN50 · sanitary, auxiliary space
GD 3
DN80 · technical basement, UPS
GD 4
DN100 · CRAC, chiller
GD 5
DN125 · central technical groove
GD 6
DN150 · main drainage channel
Questions

Most common doubts

Will this document the Tier III/IV revision?

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.

Can we measure the effect?

Yes. Pre-installation and post-installation measurements of H₂S, SO₂, and CH₄ at strategic points in the area.

Complete solution

Three products.
One protection portfolio.

Green Drain™ doesn't work alone — for maximum drain control it's combined with GD Uri-Tabs™ (urinals) and GreenSwirl™ (biofilm bio-cleaning).

Ready for Free audit?

We come to the site, map the drains, and provide a written recommendation—no cost, no obligation.