A Time Of Change

摘要

Batteries in South Shields, set about carrying out some energy efficiency checks in the factory, he made a series of alarming discoveries. "There was a solenoid valve in one of the machines," he says. "We thought, when we turned off the machine, the power being shut off would close the valve."rnIt turned out this wasn't the case: about 17,000 litres of water were draining through the valve every day. David found a broken ballcock in a toilet overflow tank that sent water out onto a rooftop drain 24 hours a day. He found that the overflows in all eight of his shop-floor toilets were doing the same.rnBetween Friday lunchtime and Monday morning, the shop floor toilets alone spat out 8,000 litres. "I was using 85,000 litres in 24 hours," says David. "Now we're steady at about 13,000."