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Home Improvement

Most Common Reasons Your Home Has Low Water Pressure

You know when you have low water pressure. It’s possible to get by with the water coming out of your faucet slower. But, when the shower is just a trickle it ruins the experience. 

In many cases, the best answer is to call your favourite emergency plumber and get them to resolve the issue for you. However, while you’re waiting it can be worth checking the following common reasons for low water pressure.

A Supply Issue

While the water board does everything it can to ensure the water supply is clean and at a suitable pressure, incidents happen that reduce the flow. 

The best way to verify if this is the case is to check the news on their website, they will advise of any current issues. You can also visit your neighbours. If they are experiencing a drop in water pressure it is likely to be related to the supply. 

There is little you can do about this!

Pressure Valve Damaged

Most homes have pressure regulators fitted. These are designed to ensure the water pressure stays below a specified setting. Above that setting, the pressure is likely to damage your valves and appliances, increasingly the likelihood of leaks and other issues. 

If the pressure valve or regulator is broken or failing then it won’t be able to control the pressure. This can lead to fluctuations in pressure but, in most cases, the result is a reduction in water pressure. 

You’ll need to have the regulator replaced. 

 Your Valve Is Stuck

Some people don’t open the water valve all the way, perhaps believing that the smaller gap will increase the pressure of your water. In fact, this has the opposite effect. A smaller gap allows less water through to fill your pipes. This means the process is done slower and your water pressure is reduced. 

Check all your valves are open properly to ensure you have the best possible water pressure. 


Take a moment to consider how old your plumbing is. Copper pipes can last for many years but they will slowly corrode from the inside as they are subject to a tough environment. When they start to corrode it is possible that the corrosion will partially block the pipes, reducing the water pressure in your home. 

This is likely if the pressure has been gradually reducing. However, it can be difficult to verify where the issue is, you may need the help of your plumber. 


If you have a leak in your pipes then the water is escaping where it shouldn’t be. That means the pressure at your faucets and other outlets will be lower than it should be. Check your system carefully, leaks don’t just reduce water pressure, they cause damage and increase the cost of your water bill. 

Final Thoughts

You may be able to identify the issue yourself which will make it easier to know what to do next. But, in most cases the best option is to get the plumber in, they can sort the issuer faster and will give you a guarantee.

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