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If you are facing low water pressure problems, then don’t worry- you are not the only one.

We understand that it becomes very frustrating to deal with this issue. Imagine going to shower and spending an hour in the bathroom because of the reduced water flow! Although the problem can easily annoy you, there are plenty of ways to get it fixed.

The first thing to do is to identify the cause behind the problem and then implement the correct method(s) to fix it. And today, in this guide, we will talk about the most common causes that lead to low water pressure. So, without further delay, let’s check them out.

7 Common Causes Of Low Water Pressure

A Person Getting Tap Water

1. Unwanted Build-up In Pipes

When minerals and debris are building up in your pipes, it can slowly lead to the water pressure deteriorating over time. Many elements like dirt, sand and other forms of pollutants can get deposited in the interiors of the pipes.

And if not fixed in time, such accumulations will slowly start entering the sink through the tiny cracks that develop in the pipes. Even the minerals present in water can decrease the pipe diameter, which will adversely affect the water pressure.

You can try DIY remedies like cleaning the pipes with baking soda and hot water or removing the pipes for thorough washing. But if the problem persists, get your plumber to deal with it more effectively.

2. Corrosion

As pipes get old, the iron or other mineral content in the water can cause them to corrode. And this can be the case for even those pipes that should apparently last for at least 20 years.

You are most likely to notice a reduction in water pressure sooner or later because of corroded pipes, which would ultimately require replacements. And that’s a job best left to professionals.

3. Supply Malfunction

Sometimes, it is not the pipes but the supply that malfunctions. The council’s supply of water might face some problems because of which there might be some disturbance in the water pressure. Even those pipes are prone to facing issues of dirt, debris, mineral build-ups, and corrosion.

If the pipes in your house are alright and you are still facing a low water pressure situation, it is best to contact the local water supplier.

4. Malfunctioning Shut Off Valve

A malfunctioning valve can reduce the water pressure in multiple pipes or faucets. And to get that fixed, you must know how to check whether your shutoff valve is performing correctly.

But if you haven’t faced a leakage problem before, the chances are that you have not handled this valve. It can be located outside your house, but don’t forget to check on the inside too.

Once you locate it, check the handles to see if the valve is open. The best thing to do is to turn them counter clockwise as far as possible to ensure that the valve is open all the way. If you see that it is turning, it means that it wasn’t completely open, which caused the water pressure to fall.

5. Old Pipes

If you have recently moved into a new house, the chances are that you will face a low water pressure situation because of the old and rusting pipes.

For example, if the existing pipes are galvanized, then they will not only be corroded but also have years of mineral build-ups in them. Of course, this does not happen in a day but gets build up over decades and leads to a reduction in water flow.

You will probably notice the problem as soon as you move in, so we’d recommend getting them replaced immediately. And when it comes to installing new pipes, we would always suggest using PEX tubing instead of the traditional copper pipes.

6. Problem With The Pressure Regulator

It is true that not all plumbing systems come with a pressure regulator. So, feel free to skip this point if you don’t have one.

However, if you do have it and are reeling under continued low water pressure, check the regulator to see if you are getting a correct reading.

If the reading is incorrect, attach a pressure gauge to the hose spigot that is in the closest proximity to the regulator. Once installed, it will give you a correct reading of the water pressure the moment you turn the tap on.

In case you witness a discrepancy in the readings displayed in the pressure regulator and the gauge, it can be just the regulator malfunctioning. And if you are not getting a reading, you know it needs to be replaced. For this purpose, we would suggest that you get a trained plumber who can help with the job instead of trying to do it all by yourself.

7. Shared Pipelines

Sometimes, the pipelines that deliver water are shared between houses and not just kept for personal use. Wondering what this means? Let us break it down for you.

If you share a pipeline with your neighbour, then the water pressure will go down every time they take a shower or wash their car.

However, this doesn’t mean that you are paying for their water consumption, but the pressure gets affected adversely because the water supply is divided. It is more like when you are taking a shower, someone in the house runs the dishwasher. Only this time, you cannot scold them for doing it while you are taking a bath!

One way around this is to change your timings and your water consumption routines. Now, these might seem like quite a task, but honestly, might be very effective. As long as you can understand when your neighbour is not indulging in heavy water usage, there will be no problem.

However, if the water pressure still does not improve, it is best to get the pipes replaced. For this, make sure you contact a trusted plumbing service that can get the work done efficiently with no hidden charges. If they are not transparent with their prices, your bill will generally turn up much higher than you had expected.

Fixing Your Low Water Pressure

While you practically cannot solve a problem with the municipality water supply, you can always try out the other solutions. Start with a preliminary check and try out DIY techniques to see if you can get the water pressure to rise.

If you still cannot solve it, the next thing to do is call up a trusted plumbing service provider who will come and check the existing condition of your pipes. Nowadays, technology has improved quite a lot, and they can just put a CCTV camera to locate the blockage effectively before improving the water pressure.

The key here is to stay cautious and take a step when you see that the water pressure in your home has decreased. In case you leave it unattended for long, the condition will only deteriorate faster, resulting in repairs or replacements worth thousands of dollars. So, keep an eye on the faucets.

And until next time!


Photo of Ashley Woolf

Ashley Woolf

Find them on their website: Woolf Plumbing & Gas, Facebook and LinkedIn.

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