Showers & Wet Corridor Testing

The communal-shower environment

UK public-pool communal showers operate under a particularly demanding profile:

• Continuous water cascade across the floor for several seconds per user, multiple users per hour
• Soap, shampoo and shower-gel residue accumulating throughout the day
• Variable user behaviour — some users move purposefully, others relaxedly
• Subdued lighting for thermal comfort and ambience
• Drain-grate locations that can become local fall points if below specification
• Shower-fitting drips persisting between users
• Cubicle thresholds and dividing walls creating visual obstruction

PTV targets for shower environments

Zone	Target wet PTV (Slider 55)
Communal shower main floor	40+
Shower cubicle floor	40+
Shower entrance/exit threshold	40+
Drain grate / drain channel surface	40+
Shower-to-changing-room transition corridor	40+

The 40+ baseline reflects that showers are the highest-foreseeable-contamination zone in the changing-room environment.

Drain grates — an underappreciated risk zone

Drain grates and channel surfaces in shower areas are themselves test zones. They:

• Are walked on directly by every user entering and leaving the shower
• Are typically a different material to the surrounding tile (stainless steel, plastic grating)
• Have engineered slip-resistance specifications that may not have been verified at handover
• Can become slip-risk zones if grease, hair and biological residue accumulate within them

We test grate-cover and channel-cover surfaces as part of standard shower-zone testing, not as an afterthought.

Shower fitting drips and residual moisture

Where shower fittings drip between users, the drip pattern produces localised wet zones that may be in the user's transit path on entry to the cubicle. This is often a maintenance issue rather than a flooring issue, but it manifests as a slip-risk pattern that the pendulum captures — localised low PTV in the drip zone, normal PTV elsewhere in the cubicle. The report identifies the pattern; the operator addresses the maintenance.

Sex-segregated and family-changing variations

Sex-segregated and family-changing shower zones have different operational profiles:

• Adult sex-segregated — concentrated peak-hour traffic, longer dwell time, steady-state wet conditions
• Family-changing — younger users (smaller feet, lower body mass), parents managing children, distracted attention, towel-dropping events
• Accessible / disabled-access — users with mobility aids or carers, often longer dwell time, sometimes specialist hoist provision

Each variant carries its own working PTV target and we test each separately in mixed-facility installations.

Shower-zone refurbishment programmes

Where shower-zone surfaces are being replaced as part of a refurbishment programme, we deliver:

• Pre-refurbishment baseline testing to document the existing surface state
• Pre-handover testing once new surfaces are installed
• Periodic re-testing in the first operating year to verify wear patterns