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Commercial Buildings · Office Towers · Business Parks

Weekend without the office.
The P-traps run dry.
Monday morning: it stinks.

Modern office building — office floors, tea kitchens, washrooms with auto-flush valves. Weekend — everything quiet. Monday morning — complaints about “that smell” in the sixth-floor washroom. The building owner wants a fix that does not need a call-out every weekend.

EN 1253No chemicalsQuietMaintenance-free
0
Complaints about smells
0
Intervention
5 years
Life
30 s
By P-trap
Problem & solution

Modern office buildings have a problem of their own.

Auto-flush systems are installed for water safety. But the floor drain dries out on weekends and holidays — because no water passes through it.

Without Green Drain™

  • The auto-flush on the WCs never reaches the floor drains, so those traps dry out.
  • Tea kitchens have a small drain that is rarely used and dries out.
  • Weekends and summer holidays — a whole floor can sit dry for a week.
  • Odour complaints logged in the building management system — each one costs a call-out
  • Corporate tenants walk away over a bad impression in the common areas

With Green Drain™

  • No dependence on auto-flush or glycol-filled P-traps.
  • Quiet in use — nobody in the washroom on the next floor hears the drain.
  • One consistent solution across the whole building
  • Resistant to chlorine tablets in toilets and maintenance products
  • No routine maintenance at trap level.
Irish commercial property

The sector is professionalising.

Dublin's Silicon Docks and Sandyford, and the tech parks in Cork and Galway, have built up a mature building services market. Facility managers win maintenance contracts on service quality, and Grade-A tenants in tech, finance and professional services increasingly judge a building on details like the absence of odour.

EN 1253
A standard that covers most office installations
LEED / BREEAM
Contribution to the building's sustainability rating
FM tender
Standard procedure through the facility management partner
0
Complaints about odours — a measurable KPI for the building manager
0
No glycol trap primers — fewer safety risks
5 years
Service life with no call-outs — CapEx, not OpEx
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), Fáilte 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 (gullies with a water seal below 50 mm, with mechanical closure, and combined types; 2023 editions), HACCP International RG-04, ASSE 1072-2020, NSF/ANSI 2, HSE SARI guidelines. Revision date: May 2026.

Implementation

How it goes through facility management.

The building manager asks for documentation for the property file. We send the technical manual and a tender-ready specification.

01

Technical manual

EN 1253 spec, product data sheet and the ASSE 1072 report — enough for the PM tender.

02

Pilot floor

One floor or wing — pilot, 90-day evaluation.

03

FM decision

The facility manager adds the specification to the portfolio standard.

04

Roll-out

By floors — during regular nightly maintenance.

Model Recommendation

Recommended sizes by area of the building.

Modern Irish office buildings are built to EN 1253. Washrooms and tea kitchens are predominantly 50–58 mm, while garages, plant rooms and central staff canteens are sized larger.

Green Drain™ Recommended for your industry.

  • Washrooms on each floor (standard)GD 2Most office buildings of the past 20 years.
  • KitchenettesGD 2Small trap, rarely used.
  • Central canteen for tenantsGD 3 or GD 4HoReCa standard.
  • Garage floor drainsGD 4 or GD 5Washing off oil, rain, and snow.
💬 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 1.5
38 mm · kitchenette shower drain channels
GD 2
50–58 mm · washrooms, tea kitchens
GD 2.5
55–65 mm · premium floors, lobbies
GD 3
75–85 mm · canteen, small kitchens
GD 4
102–110 mm · garages, plant
GD 5
120–135 mm · central channels
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™ (drain unblocking).

Ready for Free audit?

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