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New plumbing products and systems have come a long way in terms of performance and water conservation in recent years. Unfortunately, restrooms in many institutional and commercial facilities continue to use outdated and inefficient plumbing fixtures, valves, toilets and faucets that contribute to water waste and drive up utility costs.
By identifying top water wasters in restrooms and fine-tuning inspection, maintenance, and monitoring procedures, maintenance and engineering managers can eliminate or minimize water waste. Beyond that they can use benchmarks to determine whether a plumbing retrofit is the most appropriate course of action.
Vigilance is the best defense against wasted water in restroom plumbing systems. The sooner technicians can identify the source, the quicker they can prevent water waste. Regular, preventive inspections are the surest way to spot and correct problems.
The first and least costly method to eliminate waste is to look for leaks and high flow rates and, where detected, to replace leaking fixtures, faucet aerators, shower heads, and toilet valves with the newer products that use less water. Replacing high-flow restrictors with low-flow restrictors can reduce water consumption at each faucet by 50 percent.
Another waste reducer is submetering, which measures the flows in various areas and can help managers determine which buildings or systems are the biggest users and wasters. One quick way to determine the presence of leaks is to read the meter at two-hour intervals when no water is being used. The difference between the two is water wasted from leaks. With this comparison, managers can focus conservation efforts and resources on projects and produce the largest paybacks.