swimming pool Articles

  • Swimming Pool Chemistry made easy

    A new way to control biological activity in your swimming pool without using chemicals.  Healthier to you, savings in chemicals, savings in time and easy pool management.  Take a look at the full article and please contact me any where in the world if you would like to set up a similar system in your pool.  Waterdoc Limited is continuing to use this technology to improve water ...


    By Waterdoc Limited

  • Rural house with swimming pool, Perthshire

    At this site in Scotland the owner has achieved a high level of energy independence using a mix of renewable energy sources, including a Gaia-Wind turbine. Average annual wind energy production: 25,000 kWh Background At this site in Kinrossie, Perthshire, the owners’ goal was to achieve a high level of energy independence using a mix of renewable energy ...


    By Gaia-Wind Ltd.

  • 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

  • Review of swimming-associated cryptosporidiosis and Cryptosporidium oocysts removals from swimming pools

    In this paper, outbreaks of cryptosporidiosis in swimming pools in the last 20 years are summarized. Cryptosporidium oocysts are very resistant to many disinfectants, including chlorine, one of the most widely-used disinfectants in swimming pools. Ozone or UV is shown to inactivate Cryptosporidium, while not effective to newly introduced Cryptosporidium and bacteria because of no residual ozone ...


    By IWA Publishing

  • Water quality and treatment in public swimming pools

    Public swimming pools all use chlorine, unfortunately the chlorine reacts with ammonium to form a volatile gas called trichloramine. It is the this gas which stings your eyes while swimming, trichloramine also gives swimming pools their characteristic chlorine smell. Trichloramine will damage the mucous linning of your lungs, and in the case of small children it will pre-dispose their lungs ...


    By Dryden Aqua Ltd

  • Swimming Pool Chemistry Management Made Easy

    A new way to control biological activity in your swimming pool without using chemicals.  Healthier to you, savings in chemicals, savings in time and easy pool management.  Take a look at the full article and please contact me any where in the world if you would like to set up a similar system in your pool.  Waterdoc Limited is continuing to use this technology to improve water ...


    By Waterdoc Limited

  • Gas Detection in Public Swimming Pool Facilities

    Recreational facilities’ indoor swimming pools provide a venue for exercise, competition and fun for all ages as patrons splash, swim, dive and float around in the crystal clear water. To keep the water fit to swim in requires a disinfectant maintenance program commonly using Chlorine, or Chlorine and Ozone. Chlorine is a powerful, corrosive disinfectant and in both gas and liquid forms it ...

  • 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

  • Microbiological water quality and sampling policy of public swimming pools

    Water samples collected from 100 public swimming pools in the West Bank of the Palestine by health inspectors. The samples were tested for microbiological quality for the years 2003, 2004 and 2005. The overall of unaccepted tested swimming pool water samples were as follows: 35.8% for total Coliforms (TC), 24.4% for faecal Coliforms (FC), 36% for Heterotrophic Plate Count (HPC), 39.3% Enterococci ...


    By Inderscience Publishers

  • Hot springs swimming pool: Glenwood Springs, Colorado case study

    Ozone Water Treatment, Color Removal and Ozone Purification In 1991, the Hot Springs Pool and Lodge Resort installed a DIN-Standard ozonation system for treating the world’s largest hot springs-fed swimming pool. The following main reasons were responsible for this decision: The suppliers of gaseous chlorine had dwindled down to a single source, as it had become ...


    By BiOzone

  • Optimal pH in chlorinated swimming pools – balancing formation of by-products

    In order to identify the optimal pH range for chlorinated swimming pools, the formation of trihalomethanes, haloacetonitriles and trichloramine was investigated in the pH-range 6.5–7.5 in batch experiments. An artificial body fluid analogue was used to simulate bather load as the precursor for by-products. The chlorine-to-precursor ratio used in the batch experiments influenced the ...


    By IWA Publishing

  • Hong Kong University of Science & Technology Outdoor Swimming Pool

    The Site: The outdoor swimming pooi has three sand filters, two carbon filters and one ozonator. The ozonator broke down regularly, whenever the temperature in the operating room was too high. The Ozonator was used because management wanted to reduce the chiorine dosage from 3ppm to lppm. Back washing frequency of the sand filters was weekly and the carbon in the carbon filters was replaced ...

  • LIT25 level indicating transmitter controls swimming pool level

    The Town of Okotoks, Alberta I never gave it much thought, but what happens to the displaced water when a hundred people jump into a large public swimming pool? It goes into a surge tank - of course. This Greyline LIT25 Level Indicating Transmitter with ultrasonic sensor is installed in the basement of the Okotoks Recreation Centre in Alberta, Canada. The LIT's 4-20mA output is connected to a ...


    By Greyline Instruments Inc.

  • Ultraviolet disinfection systems, the best solution to school swimming pools

    School swimming pools are a valuable asset, and are now present in the majority of high schools and higher education facilities throughout the UK.  Whilst school pools vary in size, shape and usage, many school swimming facilities are facing a common dilemma in their water disinfection strategy.  Existing treatment regimes are often badly designed, under sized or simply outdated, which ...


    By atg UV Technology

  • atg UV provide solution to chemical balance in swimming pool applications

    Client: Gloucester Institute of Technology   Location: Gloucester, USA Service: Swimming Pool UV Disinfection Description: atg UV provide solution to poor water quality due to high levels of chloramines. The Gloucester Institute of Technology has chosen a state-of-the-art atg UV Technology Ultraviolet water ...


    By atg UV Technology

  • Analysis of enterovirus and adenovirus presence in swimming pools in Cyprus from 2007–2008

    An analysis was carried out to determine the presence of enteroviruses and adenoviruses in public swimming pools in Cyprus. The effectiveness of the commonly implemented disinfection procedure of chlorination was confirmed by determination of bacteriological markers. Analysis of viral presence was carried out by sampling random swimming pools from the five major cities in Cyprus during a period ...


    By IWA Publishing

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

    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

  • Association Between Swimming Pool Operator Certification and Reduced Pool Chemistry Violations—Nebraska, 2005–2006

    Previous studies have recommended mandatory education for all public pool operators, but substantiating data are limited. This study evaluates associations between pool operator certification and chemistry violations by using 2005–2006 Nebraska routine pool inspection reports. Training and certification for nonmunicipal pool operators are only required in two Nebraska counties. Free chlorine ...

  • 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

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