7 Common Causes of Low Water Pressure in the Shower


7 Common Causes of Low Water Pressure in the Shower

Share —

Low Water Pressure in the Shower

Low water pressure in the shower can be frustrating, especially when you're trying to enjoy a refreshing and invigorating shower. It can leave you feeling unsatisfied and dissatisfied with your overall bathing experience. However, before you start feeling overwhelmed, it's essential to identify the cause of your shower's low water pressure. In this article, we will explore seven common causes of low water pressure in the shower and provide solutions to help you fix the problem. If you're located in Sacramento, look no further than West Coast Hydronics & Plumbing for all your plumbing needs.

How to Fix a Shower with Low Water Pressure

Before delving into the causes of low water pressure in the shower, it's crucial to determine if the issue is isolated or widespread. Consider the following questions:

  • Is both the hot and cold water of the shower affected?
  • Does the sink faucet in the same bathroom also have low pressure?
  • Are there other rooms in your house experiencing similar low water pressure issues?

Once you have answered these questions, you can proceed to investigate the possible causes and solutions for low water pressure in your shower.

1. Low-Flow Showerhead

One common cause of low water pressure in the shower is an old or outdated low-flow showerhead. While conserving water is important, some older low-flow showerheads can restrict water flow too much, making it feel like the pressure is lacking. The good news is that replacing your old showerhead with a new, more efficient model is an easy do-it-yourself (DIY) task. Consider upgrading to a showerhead that provides both water efficiency and a satisfying showering experience.

2. Clogged Showerhead

Over time, mineral deposits can accumulate inside the small holes of your showerhead, obstructing or blocking the water flow and leading to low water pressure. To address this issue, you can remove the bowl or bag filled with vinegar overnight. The acidic properties of vinegar will help dissolve the mineral deposits. After soaking, use a small tool like a brush or a thin wire to gently clean out any remaining sediment from the showerhead holes. This simple maintenance task can often restore the water flow and improve the water pressure in your shower.

3. Worn-Out Mixing Valve

If your shower or tub has a single-handle faucet, it likely contains a mixing valve that regulates the amount of hot and cold water flowing to the showerhead. Over time, this mixing valve can become stuck or worn out, resulting in improper temperature and pressure control. Fixing or replacing a mixing valve can be a complex task and is best left to experienced plumbers like the professionals at West Coast Hydronics & Plumbing. They can ensure that the valve is properly accessed, repaired, or replaced to restore the desired water pressure in your shower.

4. Faulty Water Pressure Regulator

The water pressure regulator is an essential component of your plumbing system. Its primary function is to maintain a safe water pressure range throughout your home, typically between 46-60 psi (pounds per square inch). However, if the water pressure regulator fails, it can lead to excessively low or high water pressure, affecting the performance of your shower. If you suspect a faulty water pressure regulator, it's important to contact a qualified plumber, such as West Coast Hydronics & Plumbing, to assess the situation and replace the regulator if necessary. Proper installation and calibration of a new pressure regulator will help ensure consistent and adequate water pressure.

5. Closed Valve

Sometimes, the cause of low water pressure in your shower may be as simple as a closed or partially closed valve. Throughout your plumbing system, various valves control the flow of water. If any of these valves are accidentally closed or not fully opened, it can result in reduced water pressure. Make sure to check the water meter valve, main shutoff valve, and all inline valves to ensure they are fully open. This straightforward step may resolve the low water pressure issue in your shower.

6. Water Heater Issue

Is the low water pressure only affecting the hot water in your shower? If so, the problem might be related to your water heater. Issues such as sediment buildup, a faulty heating element, or a malfunctioning pressure relief valve can all contribute to low water pressure when using hot water. It's recommended to contact a professional plumber, like West Coast Hydronics & Plumbing, who can diagnose the problem and provide the necessary repairs or replacements for your water heater. Ensuring your water heater is functioning correctly will not only improve water pressure but also enhance your overall hot water experience.

7. Corroded or Leaking Pipes

Over time, pipes, especially older metal ones, can corrode or rust from the inside. This corrosion can restrict the flow of water and lead to low water pressure in your shower and other faucets throughout your home. Additionally, small leaks in your plumbing system can also contribute to low water pressure. If you suspect corroded or leaking pipes as the cause of your low water pressure, it's crucial to address the issue promptly. Contact West Coast Hydronics & Plumbing, a trusted Sacramento plumbing contractor, to inspect and repair any corroded or leaking pipes. They have the expertise and equipment to locate and fix the problem, ensuring proper water flow and pressure in your shower.


Low water pressure in the shower can be a frustrating issue that affects your daily routine and overall comfort. However, with the help of this guide, you can now identify and address the common causes of low water pressure in your shower. Whether it's a clogged showerhead, a worn-out mixing valve, a faulty water pressure regulator, a closed valve, a water heater issue, or corroded/leaking pipes, understanding the root cause is the first step towards resolving the problem.

If you're located in Sacramento and require professional plumbing services, look no further than West Coast Hydronics & Plumbing. As a trusted Sacramento plumbing contractor, they have the knowledge, experience, and expertise to diagnose and fix low water pressure issues in your shower. Their team of licensed plumbers can provide comprehensive solutions, including water line repiping if necessary, to ensure optimal water pressure and a satisfying shower experience.

Don't settle for a weak shower any longer. Contact West Coast Hydronics & Plumbing today to schedule an appointment and have their experts resolve your low water pressure problems for good.