Sir, – Recent water disinfection failures again confirm that producers of drinking water for public consumption must be required by law to publish online in near real-time the residual free chlorine content of the drinking water as distributed from their water treatment plants.
A residual free chlorine content of between 0.1mg/l & 0.3 mg/l at network extremities generally indicates that the water has been adequately disinfected. Note that if cryptospiridium is present in the raw water, additional treatment such as UV irridation will be required.
– Yours, etc,
JOHN S HOLMES,
Leenane, Co Galway.
Sir, – Regarding the recent failure of both Irish Water and their sometimes sidekicks, the county councils: Could I suggest that a wide ranging group of senior members from both parties be sent on an all expenses paid trip to some third world country to find out how it’s done over there. – Yours, etc,
PJ MALONEY,
Cloneyheigue,
Westmeath.