Swimming Pools Articles

  • Xylem helps Italian spa go with the flow

    A case study on the termal Hotel Mamma Margherita, Abano Terme (Padova) For many people, a relaxing break in a secluded Italian spa is the ideal way to recharge. However, what many may not be aware of is the importance of a solid and reliable pumping system to keep activity above the surface running seamlessly. Hotel Mamma Margherita, situated in Padua, north-east Italy, ...


    By LOWARA - a Xylem brand

  • Ingestion of swimming pool water by recreational swimmers

    The volume of water ingested by swimmers while swimming is of great interest to individuals who develop risk assessments using quantitative microbial risk assessment or epidemiological approaches. We have used chloroisocyanurate disinfected swimming pool waters to determine the amount of water swallowed by swimmers during swimming activity. The chloroisocyanurate, which is in equilibrium with ...


    By IWA Publishing

  • Fritz Sick Pool Cultec Parking Lot Rehabilitation

    Improper grading in the parking lot of the Fritz Sick Swimming Pool in Lethbridge, Alberta, led to stormwater flooding in the building and breakdown of the lot’s asphalt and subgrade. The consultant and contractor were open to an approach Nilex proposed, based on a complete solution of supply and installation with a rapid turnaround for design. The ability to respond quickly with a solid ...


    By Nilex

  • Removals of cryptosporidium parvum oocysts and cryptosporidium-sized polystyrene microspheres from swimming pool water by diatomaceous earth filtration and perlite-sand filtration

    Removal of Cryptosporidium-sized microspheres and Cryptosporidium parvum oocysts from swimming pools was investigated using diatomaceous earth (DE) precoat filtration and perlite-sand filtration. In pilot-scale experiments, microsphere removals of up to 2 log were obtained with 0.7 kg·DE/m2 at a filtration rate of 5 m/h. A slightly higher microsphere removal (2.3 ...


    By IWA Publishing

  • Connections: Toasty Toes

    After 14 years of living on a houseboat we have now moved into an apartment in a private home. There are many wonderful things about this apartment - the lack of dry rot and any concerns about the wind direction are two of them. Perhaps my favorite is the radiant floor heat. Radiant heat, hot water piped under the floors, keeps your toes and the rest of your body toasty. Water is great for this ...


    By BioCycle Magazine

  • All you want to know about sump pumps

    The weather nowadays is extremely unpredictable. It may be sunny now, and may rain heavily the next instant. Also, occasionally there are weather conditions like rains, hurricanes and storms, which can occur when it is least expected and among all of these, floods are the most common. Floods can be very irritating as the water can flow indoors. In such a condition, a sump pump is necessary in ...

  • Limiting swimming pool outbreaks of cryptosporidiosis – the roles of regulations, staff, patrons and research

    Cryptosporidium is the leading cause of swimming pool outbreaks of gastroenteritis. Transmission occurs through the ingestion of oocysts that are passed in the faeces of an infected person or animal when an accidental faecal release event occurs. Cryptosporidium parasites present specific challenges for infection control as oocysts are highly resistant to chlorine ...


    By IWA Publishing

  • A full-scale study of Cryptosporidium parvum oocyst and Cryptosporidium-sized microsphere removals from swimming pools via sand filtration

    Removal of Cryptosporidium parvum oocysts and Cryptosporidium-sized microspheres was evaluated in full-scale swimming pools via high-rate sand filtration (31–34 m/h) with coagulation. Results showed that at least 90% of C. parvum oocysts and microspheres were removed by filtration with an initial dosage of coagulant B (1.56 mg/L), D (1.9 mg/L or 305 ...


    By IWA Publishing

  • DBPs in a chlorinated indoor swimming pool: occurrences and modeling

    Swimming pool water contains higher chlorine residual and is maintained at a higher temperature than tap water. It constitutes environments with high levels of disinfection byproducts (DBPs) in water and air due to continuous disinfection and constant organic loading from the bathers. Exposure to DBPs is inevitable for any bather or trainer while such exposure can have cancer and non-cancer ...


    By IWA Publishing

  • Case study - Synapsys - Making a splash in energy excellence

    Synapsys makes a splash in energy excellence Synapsys, UK leader in developing and supplying innovative communication interfaces for the built environment, is at the high-tech heart of a low carbon leisure centre building which has received a top accreditation for energy saving and attracted half a million visitors in its first year. The £7million new Wolverton Leisure ...

  • How UV can reduce corrosion in swimming pool structure - Case Study

    In 1985, twelve people were killed in Uster, Switzerland when the concrete roof of a swimming pool collapsed after only thirteen years of use.  The roof was supported by stainless steel rods in tension, which failed.  The Federal Materials Testing Institute, based in Duebendorf, Switzerland, and the Federal Materials Research and Testing Institute of Berlin concluded that the collapse ...


    By atg UV Technology

  • Reference: It's much nicer to bathe in your own pool

    These days the dream of your own swimming pool is cheaper and easier to achieve than you may think. In a private pool in the picturesque district town of Lörrach, the metering system DULCODOS® Pool Comfort ensures enjoyment in crystal-clear water. More information at ...

  • The best alternative to the protection of the UF membranes - Case Study

    Advance solutions to the recirculation of water in swimming pools. Problem The public swimming pools are continuously used during all the week for many people for making sport, amusement or relax. In these installations, the visual aspect and the sanitary conditions must be guaranteed all the time. In indoor public pools, even with the mandatory previous shower and the use of ...


    By Sistema Azud, S.A.

  • Cryptosporidium; Understanding the Hidden Danger

    Found in water supplies all over the globe, Cryptosporidium outbreaks are now becoming more and more frequent causing severe illness that can be fatal to vulnerable groups such as the young and elderly and in a number of cases has lead to costly and drawn out legal action. The problem is, whilst disinfection with chlorine effectively destroys other pathogens - it takes less than one minute to ...


    By atg UV Technology

  • Reference: Pool fun north of the Arctic Circle

    Refurbishing the water treatment system of a public swimming pool? Not an unusual job. The location of the customer? A small Norwegian island in the Norwegian Sea. The result: clean pool water for modern island dwellers with true Viking blood. New technology for modern-day Vikings The ancient Viking settlement of Bjarkøy, home to nearly 500 people, is situated in the north ...

  • Wafer Thin UV System Lights The Way

    The long awaited ‘Wafer’ design was unveiled in October at Piscina & Wellness in Barcelona, and it comes as no surprise that this revolutionary new range has already had an enormous impact within the wet leisure industry. The inclusion of chemical-free UV disinfection is now becoming standard practise for many aquatic facilities worldwide.  UV systems protect against chlorine ...


    By atg UV Technology

  • Lowara gets Presidential treatment in ‘The Land of Fire’

    The Flame Fountain, Baku Park, Baku, Azerbaijan Azerbaijan has long been called ‘The Land of Fire’ due to the visually stunning natural gas fires which blaze continuously on the hillside of the Absheron Peninsula.This has proved to be the inspiration behind the Flame Fountain sculpture which resembles a vast flame bursting from the Earth’s surface. The Flame ...


    By LOWARA - a Xylem brand

  • Variability in 24 hour excretion of cyanuric acid: implications for water exposure assessment

    Cyanuric acid (CYA) excretion in urine has been used to estimate the volume of water ingested during swimming and other recreational activities in outdoor pools containing this chemical. These estimates of water ingestion are based on the assumption of 100% excretion within 24 hours, but the supporting evidence for this is scant. While adapting this methodology to investigate other water ...


    By IWA Publishing

  • A pilot-scale study of Cryptosporidium-sized microsphere removals from swimming pools via sand filtration

    Cryptosporidium species are the most common cause of gastrointestinal illness in treated recreational water venues. In order to protect public health during swimming, Cryptosporidium-sized microsphere removals by high-rate sand filtration with six coagulants were evaluated with a 5.5 m3 pilot-scale swimming pool. A sand filter without ...


    By IWA Publishing

  • Water consumption in a public swimming pool

    Swimming pools are heavy consumers of potable water and energy in cities. Despite this, the lack of monitoring requirements produces a lack of references for their water consumption. This paper aims to fill this gap by presenting a case-study water consumption analysis of a public swimming pool in the city of Bologna (Italy). After upgrading the water fixtures and filters in summer 2012, ...


    By IWA Publishing

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