Gas-powered pumps with 12–18 HP engines drive water for 6–10 inch mains, while 5 HP electric units handle 2–4 inch residential pipes. Hoses with 3/16-inch inner diameters maintain pressure ...

"We have almost 15,000 kilometres of pipelines; of those, about 2,500 are high-pressure transmission pipelines,” says Owen Wilson, Gas Networks Ireland Safety Manager.