How to lower house water pressure?

Author: Bradly Mills  |  Last update: Tuesday, November 25, 2025

If your pressure is higher or lower, then you'll need to install, repair, or adjust your pressure regulator to comply. Adjusting your regulator is easy, as long as it's working properly. Simply tighten the screw down clockwise to increase pressure and counter-clockwise to decrease pressure.

How do I decrease the water pressure in my house?

Adjust the Valve: Turn the valve slowly to reduce the flow of water into your home. Turning it clockwise typically decreases the flow and pressure. Check Pressure: After making adjustments, check the water pressure using a pressure gauge.

What if my house water pressure is too high?

The recommended range for most homes is between 40 and 80 psi. Use your trusty water gauge to measure your plumbing's water pressure. If the pressure is too high or too low, it is best to consult a plumber. They will either adjust your water pressure regulator, install one, or investigate other underlying issues.

How do I lower my plumbing pressure?

Install a pressure-reducing valve

Installing a pressure-reducing valve can regulate and decrease the incoming water pressure to a safe and optimal level for your home. A PRV valve can lower water pressure coming into the home if the municipal water supply has a high pressure exceeding 80 PSI.

How do you reduce high pressure water?

Adjust an Existing PRV
  1. Locate the PRV near your main water shut-off valve.
  2. Look for an adjustment screw on top of the valve.
  3. Turn the screw clockwise to decrease pressure or counterclockwise to increase it.
  4. Make small adjustments and recheck the pressure with a gauge.

Adjust Water Pressure Reducing Valve

Can a plumber fix low water pressure?

To fix these problems, you'll need to seek assistance from an experienced plumber who will identify the cause of the low water pressure and determine the best way to remedy the problem.

How do I adjust my domestic water pressure?

How to Adjust a Water Pressure Regulator
  1. Find the water pressure regulator on your supply line.
  2. Check out the specifications on the water pressure regulator.
  3. Attach a water pressure gauge to an outdoor faucet.
  4. Loosen the locknut with a wrench.
  5. Turn the bolt clockwise to increase the pressure.

Is 70 psi too high for water pressure?

The ideal water pressure level is between 50-70 PSI.

If your water pressure goes above 70 PSI (even occasionally), you should install a pressure regulator to your main water line.

How do I turn down high water pressure?

If you tighten the screw the water pressure will be more and if you loosen the screw the water pressure will be less. Turn the screw clockwise to tighten it and increase the pressure, or turn it counterclockwise to decrease the pressure. Do not be too hasty.

Where is the water pressure regulator in my house?

A water pressure regulator, if you have one, is usually located where the main water line comes into the house and after the main shut off valve. This way if you need to work on or change the water pressure regulator you can simply shut off the water main to do so.

Why does my house water pressure keep increasing?

Why Is My Water Pressure So High All of a Sudden? Sudden increases in water pressure can be alarming. A sudden increase can be due to a broken pressure regulator or a change in the municipal water supply. Additionally, temperature changes or a burst pipe could cause sudden spikes.

What to do if water pressure in house is too high?

If your pressure is higher or lower, then you'll need to install, repair, or adjust your pressure regulator to comply. Adjusting your regulator is easy, as long as it's working properly. Simply tighten the screw down clockwise to increase pressure and counter-clockwise to decrease pressure.

How to adjust water pressure without a regulator?

Check the main water supply pipe and find the valve next to the meter. You can tighten or loosen the bolt at the top of the valve to increase or decrease water pressure respectively. Tighten the bolt in small increments at a time, then use the pressure gauge to see when you reach the right PSI between 40 and 60.

Does every house have a water pressure regulator?

Do All Homes Have a Water Pressure Regulator? No, and in some cases, you may not need one. Certain municipal supplies regulate their water pressure safely, but if that pressure runs above 80 psi, you'll want to protect your plumbing system by installing one.

What is a dangerously high water pressure?

Normally, the standing residential house has a water pressure of around 80 PSI (pounds per square inch). Anything above 80 PSI is considered too high and can cause serious damage to your pipes and equipment.

Does water pressure affect toilet flush?

The Mechanics of Flushing

The standard toilet relies on gravity and water pressure from the tank to flush away the water in the bowl. Unfortunately, this pressure can weaken with natural wear and tear. If your toilet lacks sufficient water pressure when flushing, you've come to the right place!

What should your house water pressure be set at?

Normal water pressure is generally between 40 and 60 PSI. Most homeowners prefer something right in the middle around 50 PSI.

Can I reduce the water pressure in my house?

Hot weather and changes in water volume from your water heater can also cause higher-than-normal water pressure. The best way to reduce a home's water pressure is to use a pressure regulating valve, or PRV.

How to check water pressure without a gauge?

How To Test Water Pressure At Home Without a Pressure Gauge
  1. Turn on the sink and shower in the bathroom.
  2. Flush the toilet once.
  3. Watch the flow of water in the shower.
  4. If pressure visibly drops when the toilet is filling back up, then there is a good chance that the water pressure in the home is compromised.

Can water pressure in a house be adjusted?

Locate the PRV, usually near the main water shut-off valve. Look for an adjustment screw on top of the valve. To increase pressure, turn the screw clockwise. Make small adjustments and retest the pressure after each turn.

Who should I call for low water pressure?

Homeowners should work with a plumber to discover the source of the leak and to see if this fixes their water pressure. Sometimes, homeowners can tell where the leak might be located by noting which fixtures have low water pressure.

How do I fix my whole house water pressure?

You can increase water pressure in your home by cleaning showerheads and aerators, flushing your water heater, and clearing debris from your pipes. If these DIY fixes don't work, consider calling a professional plumber.

How much does it cost to lower water pressure?

The required type of PRVs can cost anywhere from $90-$200 and can be purchased at a big box store. A plumber will charge anywhere from $200-$800 for materials and labor but a homeowner with a moderate level of maintenance knowledge might be able to switch out their PRV. Don't water utilities like WCID No.

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