Energy-saving fluorescent light bulbs have been responsible for at least three property floodings in Iqaluit this year, say city officials.

Some Iqaluit residents who rely on trucked water delivery use fluorescent bulbs for their outdoor fill-indicator light, and that's causing a problem, said Keith Baines, foreman of Truck Services with the City of Iqaluit.

"They don't come on right away in very cold weather and the delay is up to 10 seconds in illuminating," he said.

Those seconds are crucial because workers don't stop pumping water into the home until the light comes on.

City officials recommend people install either incandescent or LED bulbs for their outdoor fill light.