How To Fix a Low-Pressure Problem

Address hot water supply problems. If only the hot water faucets have the problem of low pressure, check if the cause is the heater. Call a plumbing professional for assistance.  These are the most common problems:

  • Sediments clogging the water heater or supply pipes. Empty and rinse the tank, and if it works does not call a plumber. To prevent this from happening again, replace the anode rod frequently and consider installing a water softener.
  • The supply pipes are very narrow. In most cases, the main pipe leading from the water heater must be at least 19 mm (3/4 inch) in diameter.
  • Some leaks in the valves or tank. Just try to repair it on your own if the leak is small and you have experience in plumbing projects.

Look for some leakage in the pipes. Leaks are the common cause of low pressure. Perform a quick check to see if there are wet areas under the pipes, especially in the main pipe. Fix any leaking pipe you find.

  • Generally, the supply pipe enters your home from a side in temperate climates, or from the basement in cold climates.
  • Wet areas may be caused by condensation. Put some paper towels and check again the next day.

Test if the toilet is leaking. The mechanism of a leaking toilet does not block the flow from the tank to the bowl. Pour a few drops of artificial coloring into the tank and return in a few hours without pulling the chain. If the dye came into the bowl, it means the toilet needs repairs. Usually, all that is needed is a new hinge or another cheap and easy repair.

  • If you hear that the toilet runs continuously, it is a pressure drain.

Check the water meter to rule out any leak. If you still cannot find a leak, it is time to look at the water meter to confirm or deny its existence. Shuts off the flow of water throughout your home, then read the meter. There are two ways to search for leaks using the meter:

  • If the triangular or small circular marker keeps spinning, it means the water is still running. Assuming all keys are properly closed, you have a leak.
  • Write down the marked reading, wait a couple of hours without using water and check it again. If you get a different reading, then you do have a leak.

Make sure that the water flow valve is fully open. Look for the master valve near the water meter. If it is turned to a partially closed position, turn it back to fully open it. Rarely, this is the problem, but it will only take a few minutes to prove it.

Inspect the pressure reduction valve. Homes located on low ground often have a pressure relief device installed at the point where the pipes enter the foundation. This device, usually bell-shaped, reduces the water supply to a safe pressure level for your home. In a typical model, the top screw or handle is rotated clockwise to increase the water pressure. It is better to turn it only a few times, considering the number of laps you gave him. If you give it many, you could damage the plumbing.

  • If the device setting does not make any difference, turn off the water supply and disarm the valve. You may need to replace a part, complete the device or thoroughly clean it. It is advisable to follow the manufacturer ‘s instructions.
  • Not all homes have one of these devices, especially if the city’s water supply is maintained at low pressure or if the building is on high ground.

Try with a water softener. If your home already has a water softener installed, try setting it to work as a bypass pipe. If the pressure does not improve, have someone inspect the softener to see if you have any problems.