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Pressure Troubleshooting
6 Min Read
By Field Diagnostics
About This Guide
Stepping into a shower only to get a feeble drizzle is one of the most frustrating experiences for any homeowner. While a clogged aerator or scale-choked showerhead explains a single fixture issue, whole-home pressure drops indicate a system-level restriction.
Systemic low pressure typically traces back to a failing Pressure Reducing Valve (PRV), a partially closed municipal meter shutoff, or severe mineral scaling inside aged galvanized steel pipes. A licensed plumber can test static pressure and dynamic flow across multiple stations to isolate whether the restriction is mechanical, municipal, or due to interior corrosion.
Pressure Diagnostic Steps
Test your main PRV (Pressure Reducing Valve) adjustment setting
Verify the municipal meter valve and main gate valve are 100% open
Check for mineral tuberculation inside galvanized plumbing lines
Clean sediment screens in whole-home filtration and softener units
Confirm static water pressure sits between 45 and 70 PSI
