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10 Causes of Low Water Pressure in Your Home

13 December

Are the cold water taps and other faucets in your home taking much longer to fill a bucket or bathtub when it seems to flow at the minimum pressure? Or is your hot water system or showerhead offering a weaker spray? Either way, the culprit is lower water pressure. From corroded pipes to a problem with your main water supply, such as your stop valve, there are many reasons why your water pressure is low in the whole house. Low-pressure occurrences can arise for several reasons, like a problem in your pressure regulator or a burst pipe, and manifest in many other ways aside from low water flow, with some also leading to another internal plumbing issue. So, to get rid of this problem quickly and get your regular flow of water from the water main, you’ll first need to understand the probable sources for your low or low water flow. That’s why we’ve prepared this simplified guide to help you out. Let’s start!

10 Causes of Low Water Pressure in Your Home

Dripping Tap With Low Water Pressure

1. Issues With The Water Supplier

Before examining your internal pipe system, know whether your neighbours are reporting similar issues and experiencing low water pressure. If so, then the low water pressure is probably not the result of any problem in your house or property’s plumbing, and there’s no need to call a local plumber to get your regular flow of water back. You can also reach out to the water supplier to figure this out and know whether they are trying to fix any issue in their supply system.

2. Partially-Open Main Shutoff Valve At Home

If your house is the only one in the block that’s witnessing this problem, it’s an indication that the issue lies in the house itself.

If the main shutoff valve is not fully open, the water supply can be adversely affected in many ways. That’s why it’s essential to locate the valve and check whether it’s fully open.

After you find the valve, figure out whether it has a wheel-shaped or lever-shaped handle. Accordingly, it would be best to open the valve fully counterclockwise or make it parallel to the pipeline.

3. Failing Pressure Regulator

A regulator adjusts the pressure at the source of your water supply to a level that’s ideal for the house pipes. However, remember that all plumbing systems aren’t equipped with this fixture.

Pressure tests can help determine whether the fixture is working correctly if you have it. Add a water pressure gauge to the external hose spigot, preferably closest to the regulator.

The gauge will instantly give you the water pressure reading when turning the water supply on. If that’s lower than that indicated by the regulator, the latter is indeed the source of the problem.

Pressure Regulator Dial Gold

4. Clogged Pipes

Clogs can build up beneath the drains and deep within the pipelines. And the smallest clogs can mess things up enough to reduce water pressure. 

Since such an issue can occur anywhere beneath the house, it’s among those situations when calling a plumber is the best way out. After all, trying to fix it on your own might make things worse.

5. Closed Water Meter Valve

The second valve that controls the water consumption in your home is the water meter valve. Since this belongs to the company, most residents won’t have to deal with it directly.

But if you had a plumbing job done recently and that’s when the issue was noticed, the chances are that the valve wasn’t opened fully after the work was finished. So, someone will have to open it to normalise the water pressure. Also, check you stop tap for this may also be the culprit.

6. Changes In Water Regulations

The low water pressure also might result from changes made in the water pipe regulations applicable in your city. In that case, the water supplier doesn’t choose to comply with the changes. But installing a water-pressure boosting system at home can help solve this issue effectively.

7. Shared Pipelines

As the name suggests, shared water supplies water to multiple homes. This will cause low water pressure when neighbours sharing the pipeline use the water main for their needs. It implies the water supply is getting divided between more than one household.

However, if you can roughly estimate when the neighbours aren’t using their water, the water supply at your home should have the ideal pressure.

8. Corroded Pipes

Over time water pipes can become blocked with mineral deposits, rust, or other materials. One simple way to diagnose if the problem is caused by blocked pipes is – the water flows normally when you open the tap but then the flow drops significantly. Contact your blocked drain plumbers immediately to remedy this emergency plumbing situation.

Most pipes have an expiration date, beyond which they might start corroding. And for those made from materials such as galvanised steel, the corrosion might start manifesting in just about 20 years. However, copper and brass pipes are relatively more long-lasting. Copper pipes in particular can last for up to 50 years.

Note that older houses’ private plumbing is more likely to have galvanised steel pipes, so you must track when they need replacement.

Corroded Residential Pipe

9. Faulty Fixtures

If you notice low water pressure in multiple plumbing fixtures in your house, the issue lies with either the pipes or the water supply system. But if a few fixtures have a low water flow, you might want to check them out.

A limescale or dirt build-up might affect the aerators on faucets and reduce the volume of water released without changing the low water pressure. As such, you need to remove the aerators and find out if they need cleaning.

10. Leaking Pipes 

If the foundation or basement of your house is flooded, it’s obvious one or more of the pipes are leaking. However, a minor leak can also mess with the low water pressure by misdirecting the water supply. This implies even if all the other parts of the plumbing system work properly, you won’t get the normal flow when you have a concealed leak in the water pipes or a burst line in the property’s plumbing system. You’ll need to call a local plumber first thing in the morning to ask for plumbing services on the low water pressure issue and your internal leaks.

Why Are You Experiencing Low Water Pressure?

Now that you’ve known all about the causes behind low water pressure in any home, you’ll surely be able to tackle your private plumbing in such situations efficiently. Just be alert enough to notice any irregularity in the plumbing system, and if need be, don’t hesitate to call a licensed plumber to fix your residential plumbing issue. Most emergency plumbing situations just can’t be procrastinated. Reach out immediately to a qualified plumber for professional service on your water pressure issues and other plumbing problems. Call us, and our local plumbers will take care of the low flow in your water pipes and even your high water pressure if you’re experiencing the opposite. We can reduce the flow and prevent damage to your water network and private plumbing. Better be safe than sorry, right?

On that note, it’s time to wrap up. See you soon and take care!