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Low water pressure can be a frustrating and inconvenient problem for homeowners. It can affect everything from showering to washing dishes, and can make everyday tasks seem like a never-ending struggle. The good news is that low water pressure is often caused by common culprits that can be easily fixed with a little DIY know-how. In this article, we’ll explore the top five reasons for low water pressure in your home and provide you with practical solutions to help you get your water flowing freely again. From simple fixes like cleaning aerators and showerheads to more complex solutions like adjusting your water pressure regulator, we’ve got you covered. So don’t let low water pressure get you down – read on to find out how to tackle this frustrating problem head-on.

Common Culprits of Low Water Pressure

Low water pressure can be caused by a variety of factors. Some of the most common include clogged aerators and showerheads, faulty valves and pipes, a malfunctioning pressure regulator, and even the water supply itself. Here’s a closer look at each of these culprits:

Clogged Aerators and Showerheads

Aerators and showerheads are designed to reduce the amount of water that flows out of your faucets and showers. While this can help conserve water, it can also lead to clogs over time. When the tiny holes in your aerator or showerhead become clogged with mineral deposits, dirt, or debris, water flow can be restricted, resulting in low water pressure. Fortunately, this is an easy fix.

DIY Solutions

To clean your aerator, simply unscrew it from the end of your faucet and rinse it under running water. If there’s still debris inside, you can soak it in vinegar for a few hours before rinsing it again. To clean your showerhead, fill a plastic bag with vinegar and secure it around the showerhead with a rubber band. Leave it on for a few hours, then remove the bag and run the shower to flush out any remaining debris.

Faulty Valves and Pipes

If your home’s plumbing system is old or in disrepair, faulty valves and pipes can cause low water pressure. Leaks or damage to your pipes can result in reduced water flow, while worn or damaged valves can restrict water flow to specific areas of your home.

DIY Solutions

If you suspect that faulty valves or pipes are causing your low water pressure, it’s best to call in a professional plumber. Attempting to fix these issues on your own can cause further damage or create safety hazards. A plumber can diagnose the problem, suggest the best course of action, and make any necessary repairs.

Malfunctioning Pressure Regulator

A pressure regulator is a device that controls the water pressure in your home. If your pressure regulator isn’t functioning properly, it can cause water pressure to drop, leading to low water pressure throughout your home.

DIY Solutions

To check your water pressure, you’ll need a pressure gauge. These can be purchased at most hardware stores and are easy to use. Simply attach the gauge to an outdoor faucet and turn on the water. The gauge will show you your water pressure in pounds per square inch (PSI). If your pressure is below 40 PSI, your pressure regulator may be malfunctioning.

Fixing a malfunctioning pressure regulator is best left to a professional plumber. Attempting to fix it on your own can be dangerous and may cause further damage to your plumbing system.

Water Supply Issues

Sometimes, low water pressure is caused by issues with the water supply itself. This can include everything from high demand during peak usage hours to maintenance work being done on the water system.

DIY Solutions

Unfortunately, there’s not much you can do to fix issues with the water supply. If you suspect that this is the cause of your low water pressure, it’s best to contact your local water authority for more information.

When to Call a Professional Plumber for Low Water Pressure Issues

While many low water pressure issues can be fixed with DIY solutions, there are times when it’s best to call in a professional plumber. Here are some signs that it’s time to call in the experts:

  • Your low water pressure is accompanied by other plumbing issues, such as leaks or strange noises.
  • You’ve tried DIY solutions and your water pressure is still low.
  • Your low water pressure is affecting multiple areas of your home.

In these cases, a professional plumber can diagnose the problem and make any necessary repairs.

Preventative Measures to Avoid Low Water Pressure in the Future

Prevention is always the best medicine when it comes to plumbing issues. Here are some tips to help you avoid low water pressure in the future:

  • Regularly clean your aerators and showerheads to prevent clogs.
  • Address plumbing issues promptly to prevent damage to your pipes and valves.
  • Have your pressure regulator checked by a professional plumber every few years to ensure it’s functioning properly.
  • Be mindful of your water usage during peak hours to avoid straining the water supply.

By following these preventative measures, you can help ensure that your water pressure stays strong and steady for years to come.


Dealing with low water pressure can be a frustrating experience, but it’s a common problem that can usually be fixed with some DIY know-how. By understanding the common culprits of low water pressure and knowing how to fix them, you can get your water flowing freely again in no time. And if you’re ever unsure about how to tackle a low water pressure issue, don’t hesitate to call in the professionals. With a little effort and some preventative measures, you can keep your plumbing system running smoothly for years to come.

From minor to major residential plumbing in Los Angeles, CA and the surrounding areas, John’s Plumbing & Drain Services has you covered. Our technicians have extensive training and perform all work safely and to uniform plumbing code.  We are licensed and insured to protect your most valuable asset, your home.  

For professional and expert residential plumbing in Los Angeles, CA and the surrounding areas, contact John’s Plumbing & Drain Services today (323) 422-7485.


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