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Construction & Finishing
Does Pressure-Testing the Network Before Closing Up Walls Prevent Future Leaks?
It greatly reduces the likelihood, because pressure testing (filling the network with water or compressed air and monitoring it for a period) reveals any leak or weak fitting before it's covered by walls or tile. Skipping this step means any small execution mistake stays hidden until it worsens later, at which point the repair is far harder and more expensive than addressing it during construction.