Knowing how to check water pressure in home is crucial for every house owner. Only by testing the water pressure will you come to identify an impending plumbing problem. If you spot an issue, you can quickly find a solution before it becomes worse.

Also remember that you need sufficient pounds per square inch (psi) of water at home to enable the proper functioning of your washing machines, faucets, and showers. The first step is to measure your current water pressure and, if you find it’s not optimal, then learn how to set it to the proper amount you want.

Fortunately, the process of testing water pressure is quite straightforward. All you need is an affordable pressure gauge that’s simple to operate. You can then follow a few steps to check the pressure using the gadget.

This guide on how to test the water pressure in your home will come in handy as part of your regular home maintenance. You can understand the importance of testing water pressure, how to test it, and what to do when the water pressure is either too high or too low.

Why is testing home water pressure important?

check water pressure

Checking the home water pressure to know when the pressure is high or low will help you deal with any issue with the plumbing system in time.

Keep in mind that while low water pressure can result in trickling showerheads and faucets, high water pressure can damage your plumbing system by imposing stress on your pipes and plumbing fixtures. That’s why it’s important to test your home water pressure at least twice a year – just as you would check your indoor air quality routinely. 

High pressure can damage the plumbing pipes, water softeners, tankless water heaters, faucets, and appliances. In fact, it increases the likelihood of a blowout in the flex lines and washing machine hoses. This might result in flooding in your house – something that needs to be avoided at all costs.  

Some homeowners even have specialized gauges permanently connected to the water line so that they can check the water pressure by simply peeking at the display screen.

Even if you have a pressure regulator, aka pressure-reducing valve (PRV), on the main water supply line, checking the water pressure with a gauge routinely is important. You never know when the pressure regulator ceases to work properly. Rectifying damage to your plumbing system may be too costly.

How to check water pressure in home?

You only need a basic, inexpensive pressure gauge to check the water pressure in your house, which you can purchase from any hardware or home improvement store. Choose a scale that can measure up to 300 psi and has a rubber gasket for a tight seal. The tight seal will make it easier to get an accurate reading.

Now, follow these simple steps to measure the water pressure at home. 

  1. Turn off the water in every part of your home – be it faucets, showerheads, dishwashers, washing machines, refrigerator ice maker, and the lawn sprinkler system
  2. Connect the gauge to a faucet or hose bib outside your home – nearest to the water meter. In case you have a well, you should use a hose bib closest to the pressure tank. If you don’t have a hose bib, you can even check your water pressure at the water supply tap for your washing machine. Disconnect the hose from the faucet after turning off the cold water at the faucet behind the washer. Attach the pressure gauge to the faucet, open it, and check the pressure.
  3. Tighten the water pressure gauge (you may need pliers) and open the faucet to its full capacity.
  4. Let the equipment measure the pressure.

What is the optimum home water pressure?

water pressure in faucet

Keep in mind that the ideal water pressure range is between 45 and 55 psi. If it’s below 40 psi or more than 80 psi, you’ll know that your home water pressure is either too low or too high.  

What to do if the pressure is too high or too low?

When the water pressure is high, you’ll need to install a water pressure regulator on the water main. Set it to 50 psi by default. Make sure it times a maximum flow of 75 psi. You will have full control over adjusting the water pressure in your home by using the screw on top. Continue checking the pressure regularly.

When the pressure is low, it could be your local water company that’s not supplying sufficient water flow to your home. In such a case, you can consider installing a water pressure booster that enables good water flow to faucets and home appliances.

Another cause could be that there’s a leak somewhere in your plumbing system that’s allowing water to escape before it reaches your plumbing fixtures. 

If you’re unable to test your home water pressure, or understand the exact cause of the pressure problem, or determine whether to use a pressure regulator or a booster to open the water pressure in your home, you can always hire a professional technician to help you in your endeavor.  

Last thoughts

Your home and your living is directly impacted by the available water supply. Low water pressure will mean it will take longer to fill your washing machine or bathtub. Simple tasks such as watering your flower beds through a garden hose will become a painfully long chore. Your sink faucets may forever trickle and taking a shower will add to your frustrations. 

On the other part of the scale, if you’re getting extremely high water pressure at home, it that can damage your plumbing system. Knowing how to check water pressure in home will help you maintain the optimum pressure range and save you costly repairs (and a lot of frustration) in the long run.

Easy guide on how to check water pressure in home faucets was last modified: January 17th, 2023 by Ramona Sinha
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