How to How to Fix Low Water Pressure

Test all faucets and showers. If only one fixture affected: localized issue (aerator, valve). If whole house: main line, pressure regulator, or municipal supply issue.

Most common cause. Unscrew aerator from faucet tip (use pliers with tape to protect finish). Remove screen and rubber washer. Soak in vinegar 30 minutes to dissolve mineral deposits. Rinse, reassemble.

Remove showerhead, disassemble, soak parts in white vinegar overnight. For fixed showerheads: fill plastic bag with vinegar, tie around showerhead overnight. Scrub with old toothbrush. Rinse well.

Check valves under sinks and behind toilets are fully open (turn counterclockwise until stop). Check main water valve near meter is fully open. Partially closed valves restrict flow.

Located where main line enters house. Normal pressure: 45-60 PSI. Buy pressure gauge ($10) and test at outdoor spigot. If low and regulator is old (10+ years), may need replacement - call plumber.

Hidden leaks reduce pressure. Check water meter, don't use any water for 2 hours, check again. If meter changed, you have a leak. Inspect visible pipes, look for water stains on ceilings/walls.

If only hot water has low pressure: sediment in water heater. Turn off power/gas, attach hose to drain valve, open valve and drain 3-5 gallons into bucket. Sediment will flush out.