A normal, comfortable residential shower typically operates at a water pressure between 45 and 60 PSI (pounds per square inch). This pressure range provides an invigorating, steady spray sensation while maintaining efficient water usage and protecting your plumbing fixtures from excessive wear. While some modern thermostatic shower valves function adequately down to 35 PSI, pressures below 40 PSI often feel weak and unsatisfying, whereas pressures exceeding 80 PSI can damage shower cartridges and cause pipe vibrations. Verification: Attach a pressure gauge to a nearby faucet to confirm your system operates within the optimal target range.
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