Water Pressure Too High? How to Check Your Regulator

TL;DR: Too-high water pressure quietly wears out fixtures, appliances, and pipes. Here's how to test it and dial it in.

_Last reviewed: July 2026 · 2 min read_

Water pressure that's too high feels great in the shower but quietly hammers your fixtures, appliances, and pipe joints — and it's a leading hidden cause of leaks and burst washer hoses. Four steps let you check and correct it: test the pressure, find the regulator, adjust slowly, and recheck.

How do I test my home's water pressure?

Use an inexpensive hose-bib pressure gauge — screw it onto an outdoor spigot or laundry faucet, turn the water full on, and read the dial. Home pressure should generally sit around 40–60 psi; above ~70–80 psi is hard on your system. Test with other water off for an accurate reading.

Where is the water pressure regulator?

The pressure regulator (PRV) is a bell-shaped valve usually located where the main water line enters the house — near the main shutoff, often in a basement, crawlspace, or near the meter. Locate yours so you can adjust or replace it. Not every home has one; if pressure is high and there's no regulator, a plumber can add one.

How do I adjust the water pressure regulator?

Adjust slowly. Loosen the lock nut, then turn the adjustment screw — clockwise raises pressure, counterclockwise lowers it — a little at a time. Make small turns rather than cranking it. Then retighten the lock nut. Patience here avoids overshooting and stressing the valve.

Should I recheck after adjusting?

Always — recheck the pressure with your gauge after any adjustment to confirm you've landed in the 40–60 psi range. Pressure changes aren't always linear, so verify rather than assume. If you can't get it into range, or the regulator is old and erratic, it may need replacing (a plumber's job).

Log your pressure reading

Recording your psi and any regulator adjustment helps you spot drift over time. Okoniq Property Hub keeps it with your home maintenance records in one private place.

Frequently asked questions

What are signs of high water pressure?

Banging pipes (water hammer), running toilets, dripping faucets, short-lived appliances, and frequent leaks. A gauge reading over ~75 psi confirms it.

Can high water pressure damage appliances?

Yes — it strains dishwashers, washing machines, water heaters, and their hoses and valves, shortening their life and raising flood risk. Keeping pressure in range protects them.

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FAQ

What PSI is considered too high for residential water pressure?

Anything above 70–80 psi is too high for most homes and will accelerate wear on fixtures, appliances, and pipe joints; the safe target range is 40–60 psi.

How much does it cost to install a water pressure regulator if my house doesn't have one?

A plumber typically charges $300–$500 for parts and labor to install a new PRV, though costs vary by region and how accessible your main water line is.

Can I adjust my water pressure regulator myself or do I need a plumber?

You can adjust it yourself with a wrench and pressure gauge — turn the adjustment screw in small increments and recheck — but if the regulator is old, stuck, or you can't reach the target range, call a plumber to inspect or replace it.

How often should I check my home's water pressure?

Check once or twice a year, especially if you notice banging pipes, leaks, or appliance issues; regulators can drift or fail over time without warning.