Commercial Pool Equipment Case Studies: 12 Projects Across Asia and the Middle East
HuiQi designs, manufactures and commissions complete water treatment systems for commercial pools — circulation and filtration, AOP, ozone and UV disinfection, constant-temperature heating, dehumidification and intelligent control. The twelve projects below cover competition venues, municipal sports centres, school natatoriums, hotel terrace pools, residential clubhouses, resort water parks and large theme park attractions.
Hotel Pool
CASE 01
Creek Harbour Hotel Pool Terrace and Spa
Dubai Creek Harbour, United Arab Emirates
A rooftop leisure deck has almost nothing in common with a ground-level pool, and every decision here followed from that. Structural load limits ruled out heavy steel vessels, so the plant was built around glass-reinforced plastic filters and factory-assembled skids small enough to ride the goods lift — none larger than 1.6 m in any dimension. Salt-laden creek air pushed every wetted part to 316L stainless or titanium, including the heat exchangers. Guest rooms sit directly beside the terrace, so low-speed pumps with acoustic enclosures hold plant noise below 55 dB(A) at the nearest occupied wall. One integrated skid serves each pool, meaning any unit can be isolated for service without closing the deck.
POOLS ON THE DECK
Lap, spa and plunge (385 m³)
WETTED MATERIALS
Titanium and 316L stainless
DISINFECTION
Medium-pressure UV + low chlorine
PLANT NOISE
Below 55 dB(A) at terrace
Competition Pool
CASE 02
Jinshan Lake Sports Centre Natatorium
Huizhou, Guangdong, China
This city-level venue has to hold championship water quality on Saturday and reopen to lane swimmers on Monday — a harder brief than either alone. Counter-current circulation with continuous perimeter overflow channels skims surface contamination within minutes and leaves no dead corners for turbidity to build through evening peaks. High-rate glass-fibre sand filters with graded media hold turbidity below 0.5 NTU, roughly ten times clearer than the regulatory ceiling, while AOP advanced oxidation carries the disinfection load so only a light chlorine residual sits in the water. Air-source heat pump cascades lock the competition pool within half a degree for meets, then relax to an economy band during public hours. Online ORP and pH probes drive dosing directly.
TOTAL WATER VOLUME
Approx. 4,320 m³, three pools
CIRCULATION
Counter-current + overflow channels
FILTRATION
High-rate GRP sand vessels
MEASURED TURBIDITY
Below 0.5 NTU
Diving Centre
CASE 03
Red Sea Deep Dive and Training Centre
Hurghada, Red Sea Governorate, Egypt
A seventeen metre indoor shaft holding 1,720 m³ is a hydraulic problem before it is a water quality problem — and this one sits a few hundred metres from a hypersaline sea. Standard 304 stainless does not survive there, so filtration vessels, pipework and heat exchangers are glass-reinforced plastic, 316L stainless or titanium. Desalinated make-up water arrives expensive, which drove a genuinely low-loss circuit: counter-current flow, silica-sand pre-filtration ahead of the pumps, air-scour before rinse, and night covers on the training pool. Fine desert dust is a real filter load here rather than a nuisance, so a sand-trap stage protects the media bed and backwash triggers on differential pressure. Full-flow medium-pressure UV holds visibility above 30 m without sting.
MAXIMUM DEPTH
17 m with 6 m training pool
WATER VOLUME
1,720 m³ shaft + 210 m³ training
DISINFECTION
Medium-pressure UV, 60 mJ/cm²
WETTED MATERIALS
GRP, 316L SS, titanium
Resort Water Park
CASE 04
Bamboo Sea Resort Water Park, Indoor and Outdoor
Anji County, Huzhou, Zhejiang, China
A forest resort needed attractions that work in February as convincingly as in August, so the park splits into an indoor hall held at 29 degrees Celsius year round and an outdoor summer park — together about 10,400 m² of water surface served by 4,600 m³ of plant capacity. Sixteen independent treatment circuits keep load profiles apart: the indoor wave pool and lazy river carry the heaviest traffic, while the cave spa and beach pool run gentler chemistry suited to long soaking. Because the terrain is steep and the operator wanted minimal built footprint, high-load circuits use integrated vacuum negative-pressure units combining balance tank, filtration and circulation in one body — no filtration building, and equipment sitting close to the features it serves. One digital platform monitors every station.
WATER SURFACE
10,400 m² indoor + outdoor
TOTAL WATER VOLUME
Approx. 4,600 m³
TREATMENT CIRCUITS
16 independent sets
INDOOR TEMPERATURE
29 °C throughout the year
Community Sports Centre
CASE 05
Al Nakhil District Sports and Aquatics Centre
Al Nakhil, Riyadh, Saudi Arabia
A pool plant in Riyadh is not a European plant with the thermostat turned up. Summer ambient reaches 46 degrees Celsius, so the water often needs cooling rather than heating — which is why the heat pump circuit is reversible. Very low humidity makes evaporation the dominant load, so the dehumidification heat pump recovers energy on both the air side and the water side, and condensate is collected rather than drained. Fine desert dust enters through every intake and settles in the pool, so a coarse pre-screening stage sits ahead of the sand bed with backwash triggered on differential pressure. All backwash water goes to a recovery tank and then to landscape irrigation, cutting make-up water use by close to a third. A rooftop PV array offsets part of the load at exactly the hours it peaks.
SITE AREA
Approx. 31,500 m²
POOLS SERVED
50 m competition, training, family
DISINFECTION
AOP + low chlorine residual
MAKE-UP WATER SAVING
Approx. 28% vs. baseline
Municipal Sports Centre
CASE 06
Taizhou Sports Centre Natatorium
Taizhou, Zhejiang, China
A facility serving a coastal city of six million residents cannot close for water treatment, so the plant was designed for unattended twenty-four hour duty with capacity to spare. Nine large stainless steel sand vessels run alongside variable-frequency circulation pumps; with correctly graded media and controlled flocculation dosing, clarity stays well inside national water quality limits even through holiday peaks. On-site ozone, given adequate contact time in dedicated reaction tanks, deals with chlorine-resistant organisms and degrades urea and odour compounds in the same pass, leaving only a light protective residual in the network. Rather than heating the water and separately fighting the humidity it creates, the system couples air-source heat pumps with a dehumidification heat pump that recovers evaporative energy — 30 to 45 percent less energy than the boiler-plus-dehumidifier alternative.
NATATORIUM AREA
Approx. 16,800 m²
COMBINED VOLUME
Approx. 4,100 m³
DISINFECTION
Ozone + contact reaction tank
INDOOR HUMIDITY
Maintained at 60-65%
Coastal Water Park
CASE 07
Son Tra Bay Water Park
Da Nang, Vietnam
Fifteen thousand cubic metres of water spread across nine attractions on an exposed seafront, running every week of the year — a project where export logistics mattered as much as hydraulics. Each pool combines bottom return with surface return so circulation stays efficient and balanced, and pressure quartz-sand filtration was chosen deliberately over more exotic media so that the operator can service it locally without importing spares. Primary disinfection is ozone with a chlorine residual trim, applied across full flow rather than as a side stream, which matters where water sits warm between typhoon-season storms. Indirect heating through plate heat exchangers fed by air-source heat pumps makes use of the mild coastal climate. Plant equipment travelled by container; final parameters were set during remote commissioning after supervised installation.
TOTAL WATER VOLUME
Approx. 15,200 m³
ATTRACTIONS
9 pools incl. surfing and racer
PLANT SIZE
44 filter vessels, 24 plate HX
DELIVERY MODEL
Container + remote commissioning
Green Retrofit
CASE 08
Jianxi Industrial Heritage Sports Complex
Luoyang, Henan, China
A redundant machinery hall on the city's old industrial belt was converted into a community sports centre, keeping the original structure and daylight strips rather than demolishing them. That choice set the energy strategy: recovered waste heat from the adjacent plant now covers pool heating, and a 480 kWp rooftop PV array supplies a share of the building load, putting the project on track for a two-star green building evaluation. The plant itself stays deliberately proven — high-efficiency circulation, ozone primary disinfection with a chlorine residual, automatic water quality monitoring — because a retrofit has no margin for experimental equipment squeezed under an existing floor slab. The treatment room sits on the lower level with the dehumidification unit directly above it, keeping pipe runs short and heat recovery effective.
RETROFIT AREA
Approx. 28,700 m²
POOLS SERVED
50 m competition, training, learner
RENEWABLE SUPPLY
480 kWp PV + recovered waste heat
GREEN TARGET
Two-star green building
School Pool
CASE 09
Riverside International School Aquatics Centre
Bangkok, Thailand
Most pool literature assumes water loses heat and must be warmed. In Bangkok the plant often has to do the opposite: an unprotected pool under 35 degree air reaches 31 degrees by mid-afternoon, too warm for sustained swimming lessons and hostile to chlorine stability. The reversible heat pump here heats in the cool season and acts as a chiller from March onward, while a tension-membrane canopy cuts direct solar gain and keeps a large share of monsoon rain out of the water altogether. Turnover was sized against the actual forty-minute class blocks rather than a daily average, because that is the pattern that decides clarity at the end of the school day. AOP disinfection with a low chlorine residual keeps combined chlorine down precisely under warm, heavily loaded conditions.
POOLS SERVED
25 m main + early-years pool
DESIGN TEMPERATURE
28 °C held year round
TEMPERATURE CONTROL
Reversible heat pump, heat + cool
OPERATING PATTERN
Compulsory curriculum, 3 terms
School Competition Pool
CASE 10
Meixi Lake International Academy Natatorium
Changsha, Hunan, China
A bilingual campus wanted timetabled lessons every morning and inter-house meets at weekends, which argues for keeping teaching water separate from competition water inside one building. The main pool is a six-lane 25 m competition pool with a floor sloping from 1.4 to 1.8 m, fitted with touchpad timing and competition starting blocks, while a shallow learning pool alongside takes the youngest year groups. Medium-pressure UV disinfection replaces most of the chemical dosing, with intelligent chlorine and pH control fine-tuning the residual, so the water stays comfortable for children who swim several times a week. Plate heat exchangers draw on recovered building heat to hold 27.5 degrees Celsius. The plant reports into the campus building management system, and the hall was planned for supervision by two staff rather than a specialist operator.
FACILITY SIZE
Single-storey hall, 3,600 m²
MAIN POOL
25 m x 16 m, 6 lanes, 640 m³
DISINFECTION
UV + intelligent chlorine dosing
WATER TEMPERATURE
27.5 °C year round
Theme Park Water Park
CASE 11
Coral Lagoon Water Park, Iskandar Puteri
Johor, Malaysia
An equatorial water park faces a problem temperate parks never plan for: daily tropical downpours that dilute the entire system within minutes. Every balance tank here was oversized for storm surge, with controlled overflow and a bypass arrangement so the plant keeps running through heavy rain instead of isolating circuits exactly when they are busiest. More than twelve thousand cubic metres across a wave pool, a 480 m rafting river, a six-lane mat racer and a surfing pool split into two filtration families — eighteen integrated vacuum negative-pressure units for the high-load attractions, and twelve pressure quartz-sand vessels for the predictable ones. Ozone primary disinfection with chlorine trim runs across every circuit, driven by online residual chlorine, pH, ORP and turbidity sensing. Air-scour before a shortened rinse cuts wash water use by roughly thirty percent.
PARK AREA
Approx. 118,000 m²
WAVE POOL VOLUME
6,800 m³
TREATMENT UNITS
18 vacuum + 12 pressure units
STORM DESIGN
Surge-rated balance tanks
Residential Clubhouse
CASE 12
Haiyi Bay No.1 Residences Pool Clubhouse
Qingdao West Coast New Area, Shandong, China
Residents of a high-end development wanted a private clubhouse pool that is warm every day of the year and effectively invisible in operation — no visible plant, no chemical smell, no staff walking through changing rooms during opening hours. HuiQi answered with three circuits, each holding its own set point: a 25 m lane pool at 28 degrees Celsius, a children's pool at 30, and spa pools at 38. Plate heat exchangers take heat from the district loop, with heat pumps covering the shoulder seasons; initial heat-up demand is about 165 kW, falling to roughly 86 kW once the pool reaches steady state. UV disinfection paired with a deliberately low residual keeps the hall air free of chlorine smell, and every pool reports its own temperature, pH and sanitiser level to a single dashboard that management can read remotely.
LAP POOL
25 m x 11 m, 4 lanes, 412 m³
HEATING LOAD
165 kW heat-up / 86 kW holding
WATER TEMPERATURES
28 / 30 / 38 °C by circuit
OPERATION
Unattended daily running
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