Formerly Jim's Plumbing

5 Reasons You’re Experiencing Low Water Pressure (and Some Quick Fixes)

Dealing with low water pressure in your home can be incredibly frustrating. Whether you’re trying to enjoy a relaxing shower, wash dishes or do laundry, weak water flow can turn simple tasks into time-consuming chores.

If you’ve noticed that your taps aren’t giving you the steady stream you’re used to, there could be a few reasons behind it. From issues with your home’s plumbing to problems with the municipal water supply, low water pressure can have a variety of causes.

The good news is that many of these problems are fixable. In this blog, we’ll explore five common reasons you’re experiencing low water pressure and what you can do about them. With a little investigation and the right approach, you can get your water pressure back to normal and enjoy the full power of your plumbing fixtures again.

1. Clogged or Dirty Pipes

One of the most common causes of low water pressure is clogged or dirty pipes. Over time, sediment, mineral deposits and debris can build up inside your plumbing, especially if you live in an area with hard water.

This build-up reduces the internal diameter of your pipes, restricting the flow of water and making it harder for water to pass through. The result? You turn on the tap, and instead of a strong, steady stream, you get a weak trickle.

Older homes are particularly prone to this issue, especially if they have galvanised steel pipes, which are more likely to corrode and collect deposits. If you suspect this might be the problem, professional pipe cleaning or flushing could restore your water pressure.

In more severe cases, pipe replacement may be necessary. Even if you’ve got plastic or copper pipes, you can experience a blockage.

Regular maintenance and occasional pipe inspections can help catch this problem early, ensuring your water flow remains consistent and your plumbing stays in good shape for years to come.

2. Leaks in the Plumbing System

Leaks in your plumbing system can be a major culprit behind low water pressure. Even small leaks can cause a significant drop in pressure because water is escaping before it reaches your taps.

Here are a few ways to identify if leaks might be the problem:

  • Visible signs: Look for wet spots on walls, ceilings, or floors. Damp patches or water stains could indicate a hidden leak in the pipes.
  • Unexplained water bills: If your water bill has suddenly spiked but your usage hasn’t changed, a leak may be wasting water, leading to higher costs and lower pressure in your home.
  • Hissing or dripping sounds: Listen for unusual noises coming from your plumbing, even when the water is turned off. This could signal water escaping through a crack or small hole.
  • Pooling water: Puddles or damp areas around your home, especially near exposed pipes or your hot water system, are often signs of leaks.

If you suspect a leak, it’s essential to call a plumber. They can locate and repair the leak − using technology such as CCTV drain inspection and hydro jet drain cleaning, if necessary − to restore your water pressure.

A woman notice a water stain on a wall

3. Problems with the Water Supply Valve

A common yet often overlooked cause of low water pressure is an issue with the water supply valve. This valve, typically located near your water meter or main line, controls the flow of water into your home.

If the water meter valve isn’t fully open or has been accidentally turned slightly closed, you might experience reduced water pressure throughout your entire house.

Sometimes, the valve can be partially closed due to maintenance or repairs, and homeowners forget to fully reopen it. Even a small adjustment can significantly affect the water pressure in your taps and showers. Checking the position of the water meter valve is a simple, quick task that could easily resolve your pressure issues.

If the valve appears fully open but you’re still dealing with low water pressure, it could be faulty or damaged. In that case, it’s best to call a plumber to inspect and possibly replace the valve, ensuring a consistent water flow throughout your home.

4. Council Water Supply Issues

Sometimes, the low water pressure you’re experiencing may not be related to your home’s plumbing at all. The problem could lie with the local council’s water supply.

Here are a few common causes of water supply issues that may affect your home:

  • Ongoing maintenance: The local water authority or water supplier might be carrying out repairs or maintenance on the main water lines, which can temporarily reduce water pressure in surrounding homes.
  • Water main breaks: If there’s a break in a water main, the overall pressure in your area can drop. This is typically an emergency situation that will be addressed quickly by the water provider.
  • High demand: During periods of high water usage, such as hot summer days or peak times in the morning and evening, the water supply can become strained, leading to lower pressure for everyone.
  • Regional water restrictions: In some areas, water authorities may enforce restrictions, particularly during droughts, that can affect the pressure.

If you suspect council supply issues, check with your local water provider for updates or alerts in your area.

5. Faulty Pressure Regulator

A faulty pressure regulator could be the reason behind your low water pressure. The pressure regulator is a device installed on your water line to control the amount of pressure entering your home’s plumbing system.

When it’s working correctly, it maintains a steady, safe water flow. However, if you have a failing water pressure regulator, you might notice a significant drop in pressure − or, in some cases, extremely high pressure.

Here’s how you can tell if the pressure regulator might be the problem:

  • Sudden pressure changes: If the water pressure throughout your home has dropped suddenly, it could be due to a malfunctioning regulator.
  • Inconsistent pressure: If the pressure fluctuates between strong and weak, this is another common sign that the regulator isn’t functioning properly.
  • Older equipment: Like any other mechanical device, pressure regulators wear out over time and may need replacement.

If you suspect the regulator is the issue, it’s best to have a professional plumber check it. They can test and replace the device, restoring your water pressure to normal.

A man calls a plumber after noticing a water leak

Know When to Call a Professional

Low water pressure can be frustrating, but understanding the possible causes can help you find a solution. Whether it’s clogged pipes, a partially closed water supply valve, hidden leaks, council water supply issues or a faulty pressure regulator, there are many reasons why your water flow might be weaker than usual.

Some issues can be easily fixed with a quick check, while others might require the help of a professional plumber. The key is to diagnose the problem as soon as possible to restore the normal water pressure and make daily tasks like showering and washing dishes a breeze again.

If you’re unsure about the cause of your low water pressure or how to fix it, don’t hesitate to reach out to an expert. Getting it sorted now can save you from bigger plumbing problems down the road.

Please note: This information is provided for advice purposes only. Regulations differ from state to state, so please consult your local authorities or an industry professional before proceeding with any work. See our Terms & Conditions here.