Top Reasons For Low Water Pressure In Your House

If you are experiencing sudden low water pressure in your house, first of all make sure that your water main is not leaking. This is the most common reason for sudden low water pressure. If it’s not this and you are still experiencing a stream of water from your faucet instead of a heavy flow, then there might be something wrong with your plumbing inside the walls.

Faucet aerators are blocked

If your home has low water pressure, it could be due to a blocked faucet aerator. Faucet aerators are small screens that attach to the end of your faucet and provide a small hole for water to pass through. Over time, these aerators can become clogged with sediment and other debris, which can cause low water pressure. To clean a blocked faucet aerator, simply unscrew it from the faucet and rinse it off with water. You may also need to use a toothbrush or other small brush to remove any stubborn debris. Once the aerator is clean, screw it back onto the faucet and turn on the water to test the pressure.

Valves not open all the way

If your home has low water pressure, one of the first things you should check is whether or not all the valves in your home are fully open. This includes the main water shut-off valve, as well as any valves leading to individual fixtures like sinks, toilets, and showers. If any of these valves are only partially open, it will restrict the flow of water and lead to low water pressure.

To check if a valve is fully open, simply turn it all the way to the right (clockwise). If it doesn’t budge or feels tight, that means it’s already fully open. If it turns easily but doesn’t seem to be opening all the way, that means it’s only partially open and needs to be turned further. Once you’ve confirmed that all the valves in your home are fully open, if you still have low water pressure, there could be another issue at play.

Your old pipes are made of galvanized steel

If your home was built before 1960, there’s a good chance your pipes are made of galvanized steel. Galvanized steel pipes are coated with a layer of zinc to prevent rust and corrosion. Over time, however, the zinc wears away, leaving the steel exposed. This can cause the pipes to corrode from the inside out, which reduces water pressure.

There is a hidden leak

If you’re noticing a sudden drop in water pressure in your home, it’s possible that there is a hidden leak somewhere in your plumbing. This can be a serious problem, as even a small leak can waste a lot of water over time and cause damage to your home. If you suspect there may be a leak, it’s important to have it checked out by a professional as soon as possible.

Municipal water pressure is inadequate

There are a few reasons why your municipal water pressure might be inadequate. The first reason is that the water main leading to your house could be too small. This is especially common in older homes. The second reason is that there could be a leak in the water main. This can happen if the pipes are old and decaying. The third reason is that the municipal water pressure could be insufficient for the needs of your home. This is often the case in large homes or homes with multiple bathrooms. The fourth reason is that the municipality could be experiencing a water shortage. This happens from time to time, especially during drought conditions. If you are experiencing low water pressure, it is best to contact your municipality to find out the cause and to see if there is anything they can do to improve the situation.

What Causes Low Water Pressure in a House with a Well?

There are several reasons your home might have low water pressure, even if it gets its water from a well. The most common culprit is a clogged aerator, which is an easy problem to fix. Other possible causes include:

  • A build-up of sediment in the well itself, which can restrict water flow
  • A faulty pressure tank
  • A damaged or corroded water pump
  • A leak in the pipes leading from the well to the house

If you’re not sure what’s causing your low water pressure, it’s best to call in a professional to take a look. They’ll be able to diagnose the problem and recommend the best course of action.


I hope this article has helped you understand the top 5 reasons for low water pressure in your house. If you are experiencing low water pressure, it is important to take action to correct the problem. Low water pressure can be a sign of a bigger issue, such as a leak, and ignoring the problem can lead to more serious consequences. Contact a professional if you are unsure of how to fix the issue, or if the problem persists after taking some simple steps to improve water pressure in your home.

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