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Facility Maintenance Decisions

High-Efficiency Toilets: Consider Drain-Line Carry





Managers should be aware of concerns related to institutional and commercial facilities that use high-efficiency fixtures in systems with long runs of pipe and little water flow from plumbing fixtures. Ongoing research is trying to determine the distance solids flow downstream after a flush. This research is particularly important when considering low-flow water closets because concern exists regarding the current ASME1/CSA2 drain-line carry testing protocol. A separate Canadian study used a more realistic test using commercial fixtures with a 4-inch diameter drain pipe at a 1 percent slope.

Toilets in institutional and commercial applications that must handle paper seat covers, paper towels, and large amounts of toilet paper typically have much larger waste loads than residential toilets. In short, managers must consider the impact low-flow fixtures might have on their plumbing systems' performance and the resulting maintenance needs.




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  posted on 5/4/2010   Article Use Policy

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