Drinking water 'rank and mouldy' say residents of Mid-Ulster - how can people feel confident it is safe?

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Drinking water 'rank and mouldy' say residents of Mid-Ulster - how can people feel confident it is safe? Lauren contacted the Nolan Show, and we heard from SDLP MLA Patsy McGlone, Dymphna Gallagher from NI Water and DUP MLA Keith Buchanan.