Ms Lewis and her two children have been suffering from diarrhoea, vomiting and stomach cramps for over a fortnight - since South West Water found small traces of the parasite cryptosporidium in the Hillhead reservoir.
Water firm criticised over 'scary' outbreak yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.
Around 16,000 households and businesses in the Brixham area of Devon have been told not to use their tap water for drinking without boiling and cooling it first.