Taking a reading
Choose one hose bib
Use the same one every time so readings compare. One near the main, after the regulator, is best.
Stop all water use
No faucets, toilets filling, irrigation, dishwasher or washer.
Attach and open
Screw on the gauge and open the bib fully.
Record
Write the reading. If the gauge has a maximum needle, reset it.
Overnight check
Leave the gauge on overnight and record the maximum needle in the morning.
Pressure readings
| Date | Time | Static reading | Overnight maximum | Notes (heater just ran, irrigation, etc.) |
|---|---|---|---|---|
| ____ | ____ | ____ | ____ | ____ |
| ____ | ____ | ____ | ____ | ____ |
| ____ | ____ | ____ | ____ | ____ |
| ____ | ____ | ____ | ____ | ____ |
| ____ | ____ | ____ | ____ | ____ |
What patterns suggest
- Ifstatic readings are steady month to monththe regulator is holding; keep checking a few times a year.
- Ifstatic readings creep higher over monthsthe regulator may be wearing; have it checked.
- Ifstatic is normal but the overnight maximum is much higherthermal expansion is likely; ask about an expansion tank or its charge.
- Ifreadings jump around between checksnote conditions carefully and share the log with a plumber.
Terms on the log
- Static pressure
- Pressure with no water flowing anywhere in the house.
- Overnight maximum
- The highest pressure reached while the house sat unused, often after the water heater cycled.
- PRV
- Pressure-reducing valve, the regulator that lowers incoming pressure.
- Before and after
- Readings taken before and after a regulator or expansion tank is serviced, to confirm the fix.
Bring these questions with the log
- Is the static pressure in a normal range for household plumbing?
- Does the overnight climb point to thermal expansion?
- Is my regulator adjustable, or is it time to replace it?
- What should I expect the gauge to read after the repair?
Common questions
Where do I get a gauge?
Hardware stores sell screw-on gauges that fit hose bibs. One with a maximum-reading needle is most useful.
Does the city set my house pressure?
The city's water utility controls pressure in its mains. Pressure inside your home after the meter depends on your regulator.
How often should I check?
A few times a year, and anytime fixtures start dripping, banging or the relief valve weeps.
General information for Amerige Heights, not a quote or professional advice. In an emergency, call 911.