How to Select a Pool for an Aquatic Therapy Program

Nov 7 / Aquatic Therapy University
Learn what makes a pool truly therapeutic—from depth and temperature to accessibility and flow design. Evidence-based guidance for therapists, facilities, and manufacturers worldwide.

The Therapy Pool: Not Just a Big Bathtub

Too many clinics think any pool can become an “aquatic therapy pool” by hanging a few resistance bells on the wall.

But if your pool can’t meet the clinical, biomechanical, and safety needs of your patients, you’ve just created a very expensive spa.

A well-designed therapy pool isn’t about luxury — it’s about function. Every inch of the design should serve a therapeutic purpose, from the way a patient enters the water to the way resistance interacts with their movement.

Step 1: Match the Pool to the Patient Population

Different patient populations require different pool features:
• Orthopedic & post-surgical: Need shallow zones (chest-to-waist depth) for partial weight bearing and gait training.
• Neurological & balance disorders: Require progressive depth for buoyancy-graded challenge and safe fall zones.
• Pediatric: Shallow, warm, easily supervised; playful but clinically adaptable.
• Geriatric or cardiac: Stable temperature control (typically 92–94 °F / 33–34 °C) with step or lift entry to avoid fatigue and orthostatic stress.

Rehab Management Magazine emphasizes tailoring pool design to caseload, not convenience — noting that depth, temperature, and entry design directly affect treatment outcomes (RehabPub.com, 2024).

Step 2: Control Temperature — It’s Therapy, Not Torture

Temperature dictates tone, comfort, and endurance.
• Warm therapeutic pools: 92–96 °F (33–36 °C) – best for relaxation, pain management, and neuromuscular re-education.
• Cooler performance pools: 84–88 °F (29–31 °C) – ideal for high-intensity or athletic conditioning.

The Academy of Aquatic Physical Therapy recommends 92–94 °F for most rehabilitation applications (AquaticPT.org).

If your pool serves multiple populations, consider a dual-zone system with separate temperature controls — a feature increasingly offered by modern pool manufacturers like HydroWorx (HydroWorx.com).

Step 3: Prioritize Safe and Dignified Entry

Therapy clients often arrive with mobility impairments. Entry design can make or break participation.

Best practices include:
• ADA-compliant lifts or ramps with non-slip surfaces.
• Wide treads and sturdy rails for stairs.
• Transfer benches for neurological or bariatric populations.

The U.S. Access Board’s ADA guidelines require at least one accessible entry (lift or ramp) for public therapy pools (ADA.gov, 2024).

Internationally, similar standards appear in the UK Pool Water Treatment Advisory Group’s Code of Practice and Australia’s Public Swimming Pool Design Guidelines (2023) — both emphasizing entry safety and visual supervision.

Step 4: Engineer for Function, Not Flash

Therapeutic function relies on how the pool moves water.

Key design features:
• Variable-speed flow systems for graded resistance (useful for gait retraining and strengthening).
• Underwater treadmills for functional ambulation with buoyancy support.
• Parallel bars or resistance rails for balance and proprioception training.
• Anti-turbulence return systems to maintain laminar flow during precise motor training.

Hydraulic jets and treadmill systems now allow fine-tuned resistance progression — a concept supported by multiple studies on aquatic gait training showing improved strength and symmetry compared to static pools (Silvers & Dolan, J Strength Cond Res., 2020).

Step 5: Don’t Forget Air Quality and Maintenance

Therapists spend hours inhaling chloramines if air handling isn’t designed for therapy work.

Follow CDC Model Aquatic Health Code (MAHC, 2023) recommendations for ventilation, filtration, and disinfection by-product control (CDC.gov/MAHC).

Use UV or secondary ozone systems to minimize chloramine build-up and respiratory exposure — a crucial occupational health consideration for staff and patients alike.

Step 6: Budget for the Long Game

A therapy pool is a 20-year investment.

Cutting corners on energy efficiency, dehumidification, or staff training will cost exponentially more in maintenance and compliance later.

Include annual calibration, safety audits, and infection-control checks to meet accreditation standards (e.g., CARF International, Joint Commission).

Global Snapshot: Pool Design Norms by Region

Country Typical Water Temp Accessibility Standard Common Funding Model
United States 92–94 °F ADA 2010 Standards
Insurance/Private Pay
United Kingdom United Kingdom 33–35 °C  PWTAG Code of Practice  NHS or Private
Australia 32–34 °C AS 1428 Accessibility Code NDIS or Private
Canada 33–35 °C Provincial Building Codes Provincial Health Systems

The Bottom Line

The best therapy pools aren’t the flashiest — they’re the most intentional.

Every design decision, from water depth to jet placement, either amplifies or undermines your clinical outcomes.

When the pool works with your treatment goals instead of against them, both patients and therapists thrive.

References

• Academy of Aquatic Physical Therapy. (2024). FAQ: Aquatic Physical Therapy Practice. https://aquaticpt.org/faq
• HydroWorx. (2024). Aquatic Therapy Guide. https://www.hydroworx.com/research-education/additional-resources/aquatic-therapy-guide/
• Rehab Management Magazine. (2024). How to Build an Aquatic Therapy Facility. https://rehabpub.com/clinic-management/how-to-build-an-aquatic-therapy-facility/
• Centers for Disease Control and Prevention (CDC). (2023). Model Aquatic Health Code (MAHC). https://www.cdc.gov/mahc/
• ADA Standards for Accessible Design. (2024). https://www.ada.gov/resources/2010-ada-standards/#1009-swimming-pools
• Silvers, W.M., & Dolan, C.M. (2020). Aquatic Treadmill Training Increases Functional Strength and Balance in Rehabilitation Clients. Journal of Strength and Conditioning Research, 34(2).