Q. THE HOT AND COLD PIPES ARE RUNNING CLOSE TOGETHER, HOW SHOULD THEY BE POSITIONED?

As far as is reasonably practical water within cold pipes should not exceed 20°C. The relative positions of cold water pipes to hot water pipes should be such that the cold water pipes are not warmed.

Wherever possible horizontal cold and hot water pipes should be fixed so that the hot water pipe is at a higher elevation than the cold water pipe (see diagram).


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