Whether it has slowly built up over time or suddenly happens, low hot water pressure in homes is a sign that something is not quite right with the plumbing system. Some pressure issues can be easily resolved without the need of a plumber, while a sudden drop in water pressure might require immediate assistance.

Causes of Low Water Pressure in Houses

If you don’t see water gushing from a broken pipe, you likely don’t have a plumbing emergency. So, how do you increase the water pressure in your house? Start by ruling out these common causes for low water pressure before calling your plumber:

Water Supply is Turned Off

If you have low hot water pressure, the first thing to check is the main shut-off valve for your water supply. This valve is usually located outside, where the water enters the home.  Sometimes, there is an additional shut-off valve on the pipes leading to your main water filtration system. The water meter may also be the cause, but usually requires a special water meter key to turn the valve. It may be possible that someone turned it off or turned it to a very low position. Turning the valve to its full open position should resolve the low water pressure problem.

Deteriorating Water Filtration System Tank

Another cause of low water pressure in houses are aging water filtration systems. As water conditioners age (after 5 years), the  resin media inside the tank begins to deteriorate and restrict the flow of water.

Leaving a Faucet or Sprinkler On

The low hot water pressure in the home may be caused by a faucet or shower that has been accidentally left on. It’s easy to get distracted and forget that a lawn sprinkler has been left on or that you have been filling up a pool for your kids. Check to see if someone has left a faucet on outdoors and if so, turn it off to increase the water pressure in the house.

Limescale on Shower Heads & Kitchen Sinks

The most common cause of low hot water pressure is limescale buildup on plumbing fixtures such as kitchen sinks, bathroom faucets, and shower heads. This buildup of limescale may be causing a clog in the aerator. You can resolve the problem by taking off the nozzle to access its aerator or removing the shower head. Soak the clogged part in water and vinegar.

Water Main Issues

Check with your neighbors and see if they are experiencing a sudden loss in pressure, too. If you see workers from the water company working nearby, it could be a water main break that they’re repairing.

When to Call a Plumber

If you cannot rule out the cause of your low hot water pressure in your house, you will need a plumber. Depending on the severity of a water leak, you might need emergency service. Below are various causes of low water pressure that will require assistance from a professional.

Clogged Water Lines

If you can’t find an obvious reason for a decrease in pressure, it could be that mineral deposits have built up and are clogging different areas of your water lines. This is very common in older homes that have galvanized piping or in copper systems where the copper is connected to a dissimilar metal. To increase the water pressure in your house, you will be required to contact plumber to clean or replace lines (often called “repiping”) to prevent damage.

Break in Main Water Line

If you see standing water, mud or signs of ground saturation near the location of your main water line outdoors, you might have a leak. Contact your water authority to have them check for a leak.

Broken Water Line In Your Home

Look around your home for signs of mold or water damage in areas where your water lines run through. Rule out any running water by making sure all faucets are turned off and then check to see if your water meter is spinning. If the meter is moving, a broken water pipe may be causing low hot water pressure in the home. Prevent additional damage by shutting off your main valve and call your plumber. If you need assistance resolving a low water pressure issue, give our team a call by phone at (904) 724-2455 or schedule an appointment online. We offer plumbing services to Jacksonville and other locations in Florida such as water softener repair, sump pump installation, and water heater maintenance.