Balancing Space, Hygiene and Performance in Washroom Drainage

Hotel, Sport & Leisure Mon, Aug 24, 2026 10:06 AM

Across gyms, spas, hotels and other high-use washrooms, specifiers are under increasing pressure to deliver premium aesthetics alongside reliable performance. Shallow floor build-ups, demanding hygiene standards and expectations around sustainability all add complexity to drainage design.

When these requirements compete, compromises can often emerge. Here Erik Mul, Technical Product manager at ACO Building Drainage, looks at how, with the right approach and product selection, specifiers can avoid common pitfalls and achieve washroom environments that perform as well as they look.

Avoiding Compromise

Drainage is a critical but often overlooked element of washroom design. When compromises are made, the consequences can include poor flow performance, blockages, unpleasant odours and costly remedial work. These issues can undermine the user experience and detract from wider project goals around wellbeing, sustainability and long-term value.

The challenge is often heightened in refurbishment projects, where low floor build-ups, restricted service voids and complex pipework routes can limit design flexibility. In high-use commercial environments, fluctuating hydraulic conditions can further increase the risk of backflow and siphonage if drainage systems are not carefully specified.

Priorities for Successful Specification

To overcome these challenges, specifiers should focus on three key considerations: adaptability, hydraulic performance and serviceability.

Adaptability is essential where space is restricted or installation conditions vary. Low-profile drainage systems, flexible outlet configurations and modular components can help simplify installation while avoiding the need for extensive structural alterations. Features such as adjustable frames and different outlet orientations allow drainage to align with existing substrates and waterproofing systems more easily.

Hydraulic performance is equally important. Selecting drainage channels and gullies with proven flow capacities helps reduce the risk of standing water and ensures effective drainage, even during periods of high demand. Optimised trap designs and correctly specified channel capacities contribute to dependable, long-term performance.

Finally, serviceability is key in busy washroom environments. Drainage systems should be easy to access, clean and maintain without specialist tools. Designs that minimise debris build-up and support routine cleaning help operators maintain high hygiene standards while reducing maintenance requirements.

Designed for Modern Washrooms

To support specifiers navigating these challenges, ACO Building Drainage has developed its latest ShowerDrain range with adaptability, hydraulic efficiency and ease of maintenance at its core.

The range includes low-build, modular solutions suitable for a variety of floor constructions and layout requirements, helping specifiers achieve greater design flexibility without compromising performance. Enhanced gully designs deliver improved flow rates, simplified cleaning and easier installation, making them well suited to demanding hotel and leisure applications.

By combining performance, hygiene and aesthetics in a single solution, ACO ShowerDrain helps specifiers create washrooms that meet modern expectations while avoiding the trade-offs traditionally associated with drainage design.

For more information on shower drainage specification, visit ACO.co.uk

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In association with ACO Building Drainage


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ACO Business Centre
Caxton Road
Bedford
MK41 0LF
United Kingdom
T: 01462 816666
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