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Have you noticed that the water pressure in your home is lower than it should be? If so, one of several problems may be causing it, and finding the root of your issue will allow you to restore your plumbing to optimal levels. Below are a few common causes of low water pressure and how to detect them.

Why Is My Water Pressure Low?

1. Plumbing Leaks

If plumbing fixtures and pipes are leaking, it can affect your water pressure. Look around all water-based appliances such as dishwashers and washing machines, and check toilet seals, showerheads, and faucets for leaks. Also, look inside cabinets for signs of dampness and water stains. If you notice other plumbing areas, such as drains and toilets, are running more slowly as well, the same leak may be affecting their performance too.

2. PRV Problems

Your pressure reducing valve is usually located on the outside of your house where the main water line enters. If this valve isn't fully opened, it's not sending the right amount of water pressure into your home. If adjusting the valve doesn't help your pressure problem, have a plumbing expert check it for compromised parts.

3. Old Steel Pipes

plumbingWhen your home has old galvanized steel pipes, they can become corroded on the inside, which may affect water pressure. Depending on the scale of the corrosion, water could be restricted from passing through the pipe. To resolve this issue, you'll need to have a new pipe system installed.

4. Main Shut Off Valve Trouble

Another valve that can affect water pressure is your main shut off valve. Just like the PRV, this valve is located on the outside of your property. If it's not fully open, you'll notice a difference in your water flow. Open it all the way and if the problem doesn't resolve itself, call a plumber.

5. Water Heater Issues

Test both the hot and cold faucets in your home to see if both temperatures have low pressure. If only the hot water is affected, the problem may stem from your water heater. Anything from a leak to a faulty valve can be causing the problem, but a plumbing professional can help you diagnose the cause.


If there's low water pressure in your residential or commercial property, our experienced plumbers at All American Plumbing in Concord, NC, can help. Family-owned and serving Carabbus county and the surrounding area since 1983, our plumbers are reliable and knowledgeable in everything from drain cleaning to water heater services. When you have a plumbing issue, our skilled team will arrive on time. Call us at (704) 788-8690 for an estimate, or visit our website to schedule an appointment.

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