As a spa owner or manager in the UK, selecting the right type of swimming pool is crucial for enhancing your clients’ experience and maximising the value of your wellness offerings. This comprehensive guide will help you understand the various types of pools suitable for spa environments, their unique features, and how they can benefit your business, considering your spa layout and design requirements.

Need help identifying where you are in your spa development journey? Read our comprehensive guide that outlines the whole process (including how to avoid common pitfalls) here

1. Hydrotherapy Pools

Key Features:

  • Warm water temperature (typically 32-36°C)
  • Multiple jets for targeted massage, including swan neck type jets
  • Various depth zones
  • Often include handrails and seating areas

Benefits for Spas:

  • Ideal for therapeutic treatments and rehabilitation
  • Can be used for aqua fitness classes
  • Suitable for clients with mobility issues or joint pain
  • Enhances relaxation and stress relief offerings

Considerations:

  • Requires precise temperature and water quality control
  • Higher energy costs due to constant heating
  • May need specialised staff training for therapeutic use
  • Consider different types of jets for various treatments (e.g., bubbles, volcano seats, wall jets, waterfall fountains)

2. Infinity Edge Pools

Key Features:

  • One or more edges where water flows over, creating a visual illusion of endlessness
  • Often situated to take advantage of scenic views
  • Can be indoor or outdoor
  • Potential for exclusive offerings for guests

Benefits for Spas:

  • Creates a luxurious, high-end atmosphere
  • Excellent for marketing and attracting premium clients
  • Enhances the overall aesthetic of the spa
  • Can be combined with other pool types (e.g., hydrotherapy features)
  • Can be utilised for exclusive bookings for small or large groups

Considerations:

  • Higher installation and maintenance costs
  • Requires careful design and engineering
  • Best suited for spas with scenic locations or rooftop settings
  • Consider for purpose-built spa gardens with good views or landscaping

3. Salt Water Pools

Key Features:

  • Uses a chlorine generator to convert salt into chlorine
  • Lower chlorine levels compared to traditional pools
  • Softer water feel

Benefits for Spas:

  • Gentler on skin, hair, and eyes
  • Reduced chemical odour
  • Can be marketed as a more natural option
  • Lower long-term chemical costs

Considerations:

  • Higher initial installation cost
  • Salt can be corrosive to some materials over time
  • Requires specific maintenance procedures

4. Ozone or UV-Treated Pools

Key Features:

  • Uses ozone or UV light for water purification
  • Reduces the need for chemical sanitisers
  • Crystal clear water

Benefits for Spas:

  • Improved water and air quality
  • Reduced chlorine-related issues (e.g., eye irritation, skin dryness)
  • Can be marketed as an eco-friendly option
  • Enhances the overall spa experience

Considerations:

  • Higher initial equipment cost
  • Requires professional installation and maintenance
  • Still requires some chemical treatment (all pools, including UV and ozone-treated, need a small amount of chlorine)

5. Thermal Pools

Key Features:

  • Utilises naturally heated water from hot springs
  • Rich in minerals
  • Variable temperatures depending on the source

Benefits for Spas:

  • Unique selling point, especially if using natural hot springs
  • Can offer various health benefits due to mineral content
  • Creates an authentic, nature-connected experience

Considerations:

  • Limited to locations with access to natural hot springs
  • May require special permits and environmental considerations
  • Can have a distinct mineral smell

6. Plunge Pools

Key Features:

  • Small, typically cold water pools
  • Often used in conjunction with saunas or steam rooms
  • Usually 1-1.5 meters deep
  • Temperature range: 5°C to 15°C for client comfort and enhanced experience

Benefits for Spas:

  • Enhances circulation when used as part of a hot-cold therapy routine
  • Takes up minimal space
  • Can be indoor or outdoor
  • Adds variety to your spa’s water facilities

Considerations:

  • Limited use compared to larger pools
  • Requires proper safety measures due to temperature shock
  • May need to educate clients on proper use
  • Commercial settings often maintain temperatures around 10°C
  • Some facilities offer near 0°C options for ice baths

7. Exercise Pools

Key Features:

  • Equipped with swim jets or counter-current systems
  • Usually longer and narrower than standard pools
  • Can include underwater treadmills or cycling options

Benefits for Spas:

  • Appeals to fitness-oriented clients
  • Allows for low-impact exercise options
  • Can be used for aqua fitness classes or personal training sessions
  • Maximises space efficiency

Considerations:

  • Higher equipment and installation costs
  • Requires staff training for proper use and instruction
  • May need additional safety measures

8. Lap Pools

Key Features:

  • Typically 2.5m internal width for one swimming lane
  • Often 12.5m internal length for easy distance calculations (100m, 1000m swims)
  • Designed for continuous swimming and exercise

Benefits for Spas:

  • Caters to fitness-focused clients
  • Allows for structured swim workouts and training
  • Can be used for swim lessons or aqua aerobics classes
  • Efficient use of space for dedicated swimming activities

Considerations:

  • May require more length than other pool types
  • Less versatile for relaxation compared to other pool designs
  • Needs proper lane markings and potentially starting blocks

General Considerations for All Pool Types

Pool Covering

  • Consider options for pool covers to retain heat and improve energy efficiency
  • Choose between manual covers or automatic electronic covers
  • Covers can significantly reduce heating costs and water evaporation

Jet Types and Placement

  • Carefully consider the types and placement of jets in hydrotherapy and exercise pools
  • Different jet types serve various purposes (e.g., targeted massage, overall relaxation, resistance for exercise)
  • Consult with pool design experts to optimise jet placement for maximum benefit

Exclusive and Group Offerings

  • Consider how different pool types can be used for exclusive or group bookings
  • Infinity pools and larger hydrotherapy pools can be particularly attractive for private events or group sessions

Energy Efficiency

  • Evaluate the energy requirements of different pool types and heating systems
  • Consider incorporating energy-efficient technologies to reduce operational costs
  • Look into renewable energy options to power pool systems where possible

Choosing the Right Pool for Your Spa

When selecting a pool type for your spa, consider the following factors:

  1. Target Clientele: What types of experiences are your clients seeking?
  2. Available Space: How much room can you dedicate to water facilities?
  3. Budget: Consider both initial installation and long-term operational costs.
  4. Existing Facilities: How will the new pool complement your current offerings?
  5. Location: Are there any geographical or climate factors to consider?
  6. Maintenance Requirements: Assess the ongoing care and staffing needs.
  7. Energy Efficiency: Look for options that align with your sustainability goals.
  8. Unique Selling Points: Consider how each pool type can differentiate your spa.

By carefully evaluating these factors and understanding the different types of pools available, you can make an informed decision that enhances your spa’s offerings and delights your clients. Remember, the right pool can become a central feature of your spa, attracting new clients and encouraging repeat visits.

For expert guidance on selecting and designing the perfect pool for your UK spa, consider consulting with specialists who can provide tailored advice based on your specific needs and location.

Frequently Asked Questions

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What is the best pool for a small spa?

For small spas, plunge pools or compact hydrotherapy pools offer maximum impact in minimal space. A plunge pool needs only 2-3 metres length and 1.5-2 metres width, perfect for contrast therapy when paired with saunas. Small hydrotherapy pools (3x4 metres) accommodate 4-6 guests and provide therapeutic benefits without dominating your space. Some spas successfully use high-quality hot tubs positioned as feature pieces. The key is choosing quality over size. A beautifully designed small pool creates more impact than a mediocre larger one. We help you maximise the wellness benefits of whatever space you have available.

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How much does a spa pool cost in the UK?

UK spa pool costs vary significantly by type and size: basic plunge pools start around £10,000-£25,000 installed. Hydrotherapy pools typically range £30,000-£80,000 depending on size and jet configuration. Larger pools like infinity edge designs or exercise pools run £80,000-£150,000+. These figures include equipment, installation, and basic surrounding finishes but not extensive facility modifications. Custom features—special tile work, integrated lighting, unique shapes—increase costs substantially. Ongoing costs matter too: heating, chemicals, and maintenance for a small hydrotherapy pool typically run £5,000-£10,000 annually. We provide detailed cost projections for your specific situation.

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What pool is best for hydrotherapy treatments?

Purpose-designed hydrotherapy pools are ideal for therapeutic treatments, featuring: warm water maintained at 32-36°C, multiple jet types (targeted massage jets, whirlpool jets, air bubble systems) positioned to treat different body areas, varying depths to accommodate different treatments and abilities, handrails and seating for accessibility, and sufficient space for therapist-supervised treatments. The pool should accommodate 4-6 people comfortably for small group sessions or private treatments. Size depends on your treatment menu—passive relaxation needs less space than active aquatic therapy. We design hydrotherapy pools that support your specific treatment offerings.

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Do spa pools need planning permission in the UK?

Indoor pools within existing buildings typically don't require planning permission, though you'll need Building Regulations approval for structural, plumbing, and ventilation work. Outdoor pools often do require planning permission, especially if they're larger than a certain size, close to boundaries, or in conservation areas or near listed buildings. Some outdoor pools qualify as "permitted development" if they meet specific criteria (not more than 0.5 metres above ground level, certain distances from boundaries). The regulations vary by location and local authority. We advise on requirements for your specific situation and handle necessary applications.

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What's the most energy-efficient spa pool type?

Smaller pools like plunge pools are most energy-efficient simply due to less water volume to heat and treat. Among larger pools, well-insulated models with quality pool covers are most efficient. Covers can reduce heating costs by 50-70%. Heat pump systems are more efficient than traditional heating. Salt water or UV systems reduce chemical costs. Infinity pools can be less efficient due to larger water volumes and the need to maintain the catch basin. The most energy-efficient approach combines smart pool design (good insulation, minimal depth for intended use), efficient mechanical systems (heat pumps, variable speed pumps), and operational practices (covers, temperature management). We specify energy-efficient solutions throughout our designs.

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Can you add a pool to an existing spa?

Adding a pool to an existing spa is common but requires careful planning. Key considerations include: structural capacity to support water weight (roughly 1 tonne per cubic metre), adequate floor waterproofing and drainage, proper ventilation to manage humidity, mechanical space for pumps and heating equipment, and acoustic control to prevent noise transfer. Some buildings need structural reinforcement. Ground floor locations are simpler than upper floors. Sometimes it's easier to create an outdoor pool or spa garden than modify interior spaces. We assess your building's suitability and design solutions that work within your constraints, obtaining necessary engineering and structural input.

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How do you maintain water quality in spa pools?

Commercial spa pool water quality requires: daily testing and adjustment of pH, chlorine/sanitiser, and alkalinity levels; regular monitoring of total dissolved solids and calcium hardness; filtration system operation for appropriate hours (typically 12-24 hours daily for heavily used pools); and monthly deep cleaning. Automated chemical dosing systems improve consistency and reduce labor. UV or ozone systems supplement traditional sanitisation and improve water quality. Water testing should be documented for compliance purposes. Professional maintenance contracts ensure consistent care, typically £200-£500 monthly depending on pool size and usage. We specify appropriate filtration and treatment systems and can recommend reliable maintenance providers.