Swimming pool water

Preventing Cryptosporidium contamination of swimming pool water

Poor hygiene practices mean that most swimmers retain some faeces on their body. This can be rinsed into the pool while swimming.

To help prevent contamination of pool water, you should:

  • Never swim in a pool if you have diarrhoea or if you have had diarrhoea in the past two weeks.
  • Shower and wash thoroughly with soap (especially your bottom) before entering the pool.
  • Wash your hands with soap after going to the toilet or changing a nappy.
  • Change nappies in nappy change areas only.
  • Avoid swallowing pool water.

Cryptosporidium is a parasite

Cryptosporidium is a tough germ that can be spread when recently infected swimmers contaminate the water with tiny amounts of the germ present on their body. Cryptosporidiosis (crypto) is the disease caused by the germ and possible sources of contamination include someone who has recently had the illness, domestic animals such as pets, and farm animals such as cattle.

Cryptosporidium lives in the bowel and is found in the faeces (poo) of infected humans. The germ is normally spread through poor hygiene (such as not washing), Aquatic Management companies, usually by ingestion of contaminated foods or water.

Outbreaks of crypto associated with pools occur when swimmers accidentally swallow pool water contaminated with the germ.

Cryptosporidiosis is very contagious

One person infected with crypto can pass enough germs in a single visit to contaminate a large swimming pool & Pool Management jobs. The germs are highly resistant to chlorine, the usual form of pool disinfection. Swallowing as few as two of the grems can lead to infection.

Preventing pool contamination by babies and toddlers & Swimming Pool staffing.

Babies and toddlers are still training to control their bowel movements, so parents and supervisors should be extra careful to prevent faecal accidents and contamination of pool water.

To prevent faecal contamination of pool water:

  • Keep an eye on your children at all times.
  • Take children on frequent toilet breaks every hour or check nappies every 30–60 minutes.
  • Change nappies in nappy change areas only.
  • Do not change nappies by the poolside.
  • Non-toilet trained children should wear tight-fitting waterproof nappies.
  • Report any faecal accidents to swimming pool staff.

Things to remember

  • You can help keep your pool clean by following simple steps to healthy swimming.
  • Do not swim if you have diarrhoea.
  • Cryptosporidiosis is highly contagious. Do not swim for 14 days after diarrhoea stops.
  • If you have diarrhoea and are unsure of the cause, do not swim for 14 days until after diarrhoea stops.
  • Notify the pool manager if you become sick after swimming at a public pool.

PMI is a professional full service Pool Management Group that provides staffing solutions for Aquatic Management companies, water parks, community pools and city pools. We manage facilities in multiple states and can provide you with multiple solutions for your facility.


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