What’s the smart, scalable answer for pool water disinfection?
The many pool types in this magazine have one vital thing in common. They all require filtering and disinfection to kill harmful bacteria and control the spread of algae.
Chlorination is the well-proven way to keep bathers safe, so the real question for pool operators is: what’s the best way to add chlorine?
Every disinfection application is different, with its own particular challenges. Whether your customers are splashing, swimming, plunging down a flume ride or relaxing at a spa, the right solution will keep them healthy, fit your site’s needs – and boost your bottom line.
From high speed slides to paddling pools, theme parks present many disinfection challenges. There’s shallow water, fluctuating temperatures and pollution from bathers to deal with, plus elevated amounts of debris to filter out.
Spray from water rides can generate legionella aerosols during hot summers, then the winter shut-down requires a completely different water treatment regime. Any solution must process very high water volumes, be flexible enough to maintain the desired pH and residual chlorine levels year-round and also help to limit metal corrosion in water ride infrastructure.
With water slides, multiple pools and many customers, large aquatic centres require constant filtration and huge amounts of chlorinated water. But bather demand fluctuates widely and so does the pollution they produce, demanding a flexible, high-output disinfection system and continuous monitoring to keep free chlorine levels bang on target.
Aquatic centres must minimise corrosion in moveable pool floor mechanisms while reducing Disinfectant By-Products (DBPs) such as chloramines and THMs, particularly in children’s water features and flumes. Combining chlorination with coagulation plus sand and granular activated carbon filtration or secondary UV systems are effective ways of controlling this.*
Municipal facilities are generally smaller than aquatic centres but have the same disinfection goals: maintaining the correct pH and chlorine levels to prevent recreational water illnesses, control legionella and restrict algal growth. With limited staff, a user-friendly, low maintenance disinfection system becomes even more important.
When groups of young children visit, bather pollution can spike very quickly. Other users like canoe or scuba clubs add further contamination, making filtration, flocculation and disinfection vital to maintain water hygiene and control DBPs.
Spas and wellness centres
With their small water capacities, high temperatures and heavy bather loads, hot tubs are particularly difficult to operate safely. Very warm water and aeration encourage fast bacterial growth, aided by pollution from oils, body treatments and the surrounding environment. Low water volumes with fast circulation require excellent filtration and consistently potent biocides.
Spa temperatures fluctuate widely and, to help restrict legionella growth, they must be drained and cleaned frequently (HSE ACOP L8 regulations), making the disinfection system work hard to maintain the desired chlorination levels.
The solution is smart technology
One unique water treatment solution overcomes all the challenges above with ease. Gaffey’s Hyprolyser® electrochlorination range scales from a single spa to a complete water park and is flexible enough to cope with a busy, full capacity weekend or an extended Covid shutdown.
The British-built, easy-to-use Hyprolyser generates hypochlorite on-site from common salt and water using Gaffey’s unique, patented technology – safely, ultra-reliably and with pin-sharp accuracy. With no hazardous chemicals plus reduced packaging and transportation, it’s more sustainable too.
Hyprolyser delivers significant savings, generating your own chlorine with low-priced salt as its raw material, minimal labour and service costs plus reduced pH correction chemical consumption. Hyprolyser also offers increased site safety and eliminates COSHH administration.
*Environmental Science & Technology (June 2019)
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