Hydrotherapy Pool Testing

Hydrotherapy pool environments

UK hydrotherapy pools span:

• NHS and private hospital hydrotherapy — rehabilitation, post-surgical, neurological, rheumatological
• SEN and special-school hydrotherapy — pupils with significant physical disabilities; daily use during term
• Care home hydrotherapy — the smaller subset of UK care homes operating dedicated hydrotherapy facilities
• Private clinic hydrotherapy — physiotherapy and rehabilitation clinics, often osteopathy and chiropractic-affiliated
• Charitable / sector-specific hydrotherapy — e.g. MS-society, stroke-association, motor-neurone-association facilities

Why hydrotherapy demands tighter PTV targets

Hydrotherapy pool-side falls produce disproportionate consequences because the user population is unusually vulnerable. The HSE PTV bands (derived for general adult ambulatory populations) understate actual fall risk in hydrotherapy contexts — a moderate-band PTV (25–35) that would be borderline-acceptable in a general public pool environment is too low in hydrotherapy.

Working PTV targets for hydrotherapy:

Zone	Target wet PTV (Slider 55)
Pool surround main area	40+
Pool steps and ladder approach	45+
Ramped beach entry	45+
Hoist transfer points	45+
Patient-changing-area floor	40+

Mobility aids change the slip-risk picture

Wheeled mobility aids interact with floor surfaces differently to ambulatory feet. In hydrotherapy:

• Wheelchair tyres on wet tile produce different friction outcomes to a bare foot or pool shoe
• Hoist transfer points are zones of concentrated slip risk — the carer pivots while the patient is being lifted, on a wet floor
• Sliding-board transfers introduce additional contact-point friction concerns
• Crutches, walking sticks and frames have small contact areas that exert high local pressure

Periodic testing should explicitly capture the mobility-aid usage profile of the patient population — the report identifies which slider was used at which location and why.

Water chemistry — warmer, stronger

Hydrotherapy pools are typically operated at higher water temperatures (32–35°C versus 26–28°C for a leisure pool) which accelerates surface chemistry interactions. Chlorine half-life is shorter, surface-coating wear can be faster, and floor-tile sealants degrade more rapidly than in a leisure-pool context.

Some hydrotherapy facilities use salt-water chlorination or alternative sanitisation chemistries; these should be flagged when commissioning testing because they affect both surface chemistry and the longevity of any anti-slip treatment.

Clinical governance and CQC inspection

For NHS and CQC-regulated hydrotherapy facilities, periodic pendulum data feeds into the wider clinical-governance framework around premises safety. The CQC's Safe key question covers premises-related risks, including slip risk in clinical and treatment environments. Independent UKAS-accredited testing provides documentary evidence that the hydrotherapy floor element of falls prevention has been independently verified.

Refurbishment and replacement programmes

Many UK hydrotherapy pools were built in the 1980s–1990s and are now in or approaching major refurbishment cycles. For refurbishment programmes we provide:

• Pre-refurbishment baseline testing to document the existing surface state
• Specification review of the proposed replacement flooring
• Pre-handover testing once refurbishment is complete
• Periodic re-testing in subsequent operating years to verify the new surface is wearing as expected