What Causes Low Water Pressure?

Clogged drains and leaking pipes are the most common reasons you call a plumber. However, your plumbing can sometimes affect your water pressure. The typical inlet pressure at a residential home is 40-45 lbs per square inch. If you have noticed a change in your home’s output, you may be dealing with low water pressure.

The average American home uses a lot of water, around 300 gallons daily. Nearly 75% of that use comes from our indoor fixtures. You may not think about water getting to your house often. And if the pressure drops, most of us have no idea why or where to look for a problem to fix.

Let’s cover the most common plumbing-related water pressure issues your home may be experiencing and what you can do to mitigate the problems.

Water municipality is experiencing issues

The most common cause of low water pressure comes not from your home’s plumbing but from an issue with your water provider. Before you call a plumber, talk to your neighbors and see if they’re also experiencing problems.

If they are, you’ll want to contact your water provider and ask about any known issues. They can provide you with a timeline for fixing the problem if they know of any.

New local regulations

As cities and municipalities emphasize environmental protection, regulations may have changed regarding water flow.

These generally result in a minor drop in water pressure and will help you with your water bill.

However, you may want to purchase a booster if you are concerned about your water pressure. While some customers install these, we highly recommend calling Angry Pipe Plumbing Solutions to ensure your water pressure booster is installed correctly.

Main shutoff valve Isn’t open all the way

If you are the only neighbor experiencing issues with your water pressure, look around your house for a potential cause.

Start with checking the main shutoff valve. It may be located outside or inside where the supply pipe enters your home.

If it has a handle similar to the one you would use to turn on your hose, it needs to be turned counterclockwise as far as it can go. If the handle looks like a lever, the lever needs to be parallel to the pipe. Otherwise, it’s not fully open, making your pressure low.

Water meter valve is partially closed

The water meter valve is the second valve controlling the water intake in your house. This valve belongs to the water company, so most residents will never deal with this valve directly. Some of them are pretty difficult to reach, especially those that are located underground.

If you’ve recently had work done on your house, contact your water company when you notice low water pressure. Chances are, the valve was not opened correctly after the job was complete, and someone will need to open it all the way.

Pressure regulator is failing

Not every home in the East Valley has a pressure regulator. If you don’t have one, this solution is not for you.

If your home’s plumbing has a pressure regulator, you can perform a simple test with a water pressure gauge. Attach the gauge to an outdoor spigot (preferably closest to the pressure regulator). A faulty pressure regulator may be your issue if the numbers fall below what is expected. You may be able to replace the regulator independently; however, we recommend calling us to ensure it is done correctly.

Pipes are corroded or clogged

Corroded and clogged pipes are common reasons for reduced water pressure.

Over time, minerals in the water can build up. These minerals are sometimes corrosive to your home water supply pipes. The minerals also build up and reduce flow. If your water flow is reduced, your pressure is reduced.

Unfortunately, replacing the main water line in your house is not a job for an average homeowner. We recommend giving us a call.

We will perform a video inspection of your line and show you exactly where your issue is. We will also provide a free estimate for replacing or repairing the waterline if necessary.

Pipes are leaking

Over time, things like tree roots, temperature changes, and plain old age can take a toll on your pipes. It doesn’t take much of a leak to cause a significant drop in water pressure.

Similar to our process of diagnosing clogged and corroded pipes, we will perform a video inspection and provide a quote to repair the leaking pipes.

Help for low water pressure

Low water pressure can ruin everything from your shower to your dishes. The earlier we address the cause, the less the damage will spread–plus, the sooner you’ll be enjoying your regular water pressure again.

We hope this information is helpful. At Angry Pipe Plumbing Solutions in Queen Creek, Arizona, we understand the importance of establishing a trustworthy relationship with a certified, licensed plumber. That’s why we offer convenient options for scheduling appointments. Feel free to reach out to us at 480-526-5030.

Our commitment to detail and exceptional service has made Angry Pipe Plumbing Solutions leaders in advanced plumbing repairs and installations. We welcome customers from Chandler, Gilbert, Mesa, Queen Creek, and San Tan Valley, Arizona. We look forward to seeing you soon!