Low Water Pressure? 7 Easy Fixes for Older Alameda County Homes

Quick Fixes for Low Water Pressure in Older Alameda County Homes

Why Your Pressure Drops

Older homes often hide galvanized pipes, mineral-clogged fixtures, or worn pressure-reducing valves (PRVs). Before you consider repiping, run through these diagnostics and easy fixes.

Diagnostic Checklist

1. Measure household pressure with a $15 gauge—ideal is 50-65 psi.
2. Compare hot vs. cold flow; hot-side issues point to water-heater scale.
3. Test multiple fixtures. One weak tap = local clog; whole-house = main line or PRV.

7 DIY Fixes that Restore Strong Flow

1. Clean Aerators & Showerheads

Mineral buildup is pressure enemy #1. Soak in vinegar for 30 minutes and brush clean.

2. Adjust or Replace the PRV

Located near the main shut-off, the PRV regulates incoming pressure. Turn the screw clockwise to raise pressure or swap in a new unit if corroded.

3. Check for Hidden Leaks

Shut all taps and watch the water meter. Movement within 15 minutes signals a leak stealing pressure.

4. Flush Supply Lines

Remove affected fixtures and blast water for 30 seconds to clear sediment.

5. Replace Angle Stops & Supply Hoses

Partially closed or clogged stops under sinks restrict flow—swap in quarter-turn valves for full-bore performance.

6. Descale the Water Heater

Drain a few gallons or perform a full flush to remove calcium that throttles hot-water pressure.

7. Swap Galvanized Sections for Copper

If short segments of galvanized pipe are to blame, replace them with copper for the best efficiency.

Know When It’s Repipe Time

If you still measure under 40 psi at multiple fixtures, widespread galvanized lines may need full replacement. Good Fit Plumbing provides camera inspections, pressure tests, and affordable repipe quotes.

FAQs

Will a booster pump solve my problem?

Only if city supply is low. In most Alameda neighborhoods, inadequate pressure comes from internal restrictions rather than street pressure.

Is low pressure bad for appliances?

Yes—dishwashers and washing machines designed for 50-psi operation may run longer cycles and waste energy when pressure is low.