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Professional engineering consulting services for organisations and businesses
Based in Wellington, serving building projects throughout New Zealand

Aquatic engineering for commercial pool design and upgrades


A commercial pool needs more than a filtration system that keeps the water clear. Pool water treatment, hydraulics, heating and pool hall ventilation all influence water quality, energy use, maintenance requirements and day-to-day operation.

Jonathan Foster considers those systems together when designing new aquatic facilities, refurbishments and upgrades.

His experience includes the QE2 upgrade in Christchurch, the Livingstone Aquatic Centre in Te Awamutu, Karori Pool in Wellington, the Pulse Energy Recreation Centre in Westport, the Dudley Park Aquatic Centre in Rangiora, among others. Aquatic projects have played an important part in developing his approach to integrated and synergistic building services design.

Contact Jonathan to discuss your aquatic project before major system and layout decisions are fixed.

Pool water services - Overview:

CPDT Consulting provides commercial pool design and aquatic engineering for new facilities, refurbishments and system upgrades throughout New Zealand.
  • Consider pool water, HVAC and hydraulic systems together to unlock synergistic opportunities
  • Compare filtration and treatment options against water quality and operating requirements
  • Assess system choices against energy use, lifespan, maintenance and long-term cost
  • Plan plant rooms for practical servicing and eventual equipment replacement
  • Review existing systems to support refurbishment and replacement decisions
  • Define controls and operating requirements for more effective plant performance

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Commercial pool systems design focused on water quality and energy efficiency

  • Consider pool water, heating and ventilation as connected systems
  • Compare filtration and treatment options against how the facility will operate
  • Plan plant rooms for easier maintenance and future equipment replacement
CPDT Consulting is based in Wellington and provides commercial pool design for aquatic projects throughout New Zealand.

Integrated aquatic design for long-term energy performance


Aquatic facilities contain several energy-intensive systems, so decisions made in one area can have a significant effect elsewhere.  
CPDT Consulting evaluates pool water treatment, heating, ventilation, and hydraulics as a unified setup - unlocking synergistic opportunities where a single design decision delivers multi-system efficiency, reduced running costs, and improved air and water quality.
Whether designing commercial swimming pools or specialist aquatic features like hydroslides, we evaluate options across upfront capital, energy draw, plant lifespan, and ongoing maintenance. Integrating HVAC design and hydraulic systems directly with pool water treatment streamlines team coordination, prevents spatial conflicts, and ensures your facility performs reliably for the long term.

Commercial pool filtration and treatment systems


Different pool treatment technologies perform different jobs, so there is no single system that is automatically best for every aquatic facility.

Sand filtration removes physical contaminants, while systems such as UV and ozone can provide complementary treatment for biological contaminants.

We assess the available options against the needs of the facility, including water quality, operating requirements, maintenance, equipment life and overall system performance.

We evaluate manufacturer claims against engineering evidence to ensure the recommended treatment systems are appropriate for the facility.
We also consider how pool water treatment interacts with the facility’s mechanical and hydraulic services to achieve efficient, reliable performance across the entire system.

Pool plant room design for maintenance and replacement


A pool plant room needs to work not only on opening day, but throughout the life of the facility.

In our design, we always consider plant space, service routes, maintenance clearances and eventual plant replacement to ensure long-term functionality.

Providing a practical removal route for major equipment can help avoid expensive alterations or demolition when plant eventually reaches the end of its useful life.

For existing aquatic facilities, Jonathan can also investigate current systems and provide condition assessments or refurbishment advice. This can help owners understand remaining equipment life, likely replacement requirements and the options available before committing to a major upgrade.

This work forms part of CPDT Consulting’s wider
building services engineering service.

Frequently asked questions for Pool water services

Controls performance specifications can define operating schedules, temperature ranges, monitoring requirements and how plant should respond under different conditions. Good controls help equipment operate when it is needed rather than wasting energy through unnecessary operation.

Where applicable, Jonathan prepares engineering documentation and applies the relevant Building Code requirements to support the consent process for the aquatic facility.

We design systems for commercial swimming pools, school and council aquatic centres, hydroslides, rapid rivers, and specialist water features across commercial, leisure, and institutional developments. We also cover specialist and more niche facilities.

Yes. We design compliant, reliable filtration and water treatment systems, backwash systems, and chemical dosing systems engineered for safe operation and simple ongoing maintenance.

Yes. We assess existing aquatic plant condition and remaining plant lifespan to recommend practical, cost-effective retrofits that fit your current constraints.

Pool water services Summary:

  • What: CPDT Consulting provides aquatic engineering covering commercial pool design, pool filtration, hydraulics, heating, ventilation, plant room layouts and existing system assessments.

  • Where: CPDT Consulting is based in Wellington and works on commercial aquatic projects throughout New Zealand.

  • Who for: Jonathan works with architects, project managers, contractors, facility owners and other consultants planning new aquatic facilities, refurbishments and pool system upgrades.
Professional engineering consulting services for organisations and businesses
Based in Wellington, serving building projects throughout New Zealand