Ultraviolet light deactivates harmful microorganisms such as bacteria and viruses by disrupting their DNA, effectively preventing them from multiplying and causing illness. E-coli, cryptosporidium, and giardia lamblia are examples of waterborne microorganisms that cause numerous gastrointestinal illnesses. These can be easily controlled with UV sterilisation.
Untreated farm water supplies have an increased risk of microbial/fecal contamination and UV sterilisation is a common solution for managing these water supplies without having to add chemicals to your water. UV sterilisation should provide a potable water system and prevent people from becoming sick. Many farms use this as a pre-cautionary method even if their water is normally deemed ‘safe’ to drink.