The Causes and Cures For Low Water Pressure

Low Water Pressure

Few plumbing problems are more frustrating than stepping into the shower and being met with a weak trickle of water. Low water pressure can affect everything from shower comfort to how long it takes to fill a sink or washing machine. At MR Plumbing Heating Air Electrical, we’ve been helping Chicagoland homeowners solve water pressure problems since 1972. Here are the most common causes, and how to fix them.

1. Clean Your Faucet and Shower Aerator Screens

Mineral deposits and sediment are the most common culprits of reduced water flow at a faucet or showerhead. Over time, these particles clog the tiny holes in aerators and shower heads, restricting flow. The fix is simple:

  • Unscrew the faucet aerator or shower head.
  • Soak it in white vinegar for several hours to dissolve mineral buildup.
  • Scrub gently with a toothbrush and reinstall.

Regular cleaning not only restores water pressure but also extends the life of your fixtures.

2. Upgrade or Replace Your Shower Head

If your shower feels weak, your shower head itself may be the problem. Many homes have low-flow shower heads installed to conserve water, but some older models drastically reduce pressure. Try replacing yours with a newer high-pressure shower head—many are inexpensive and can make a big difference instantly.

3. Check the Valves in Your Home

Sometimes the solution is as simple as a partially closed valve. If someone shut off your home’s main water valve (for repairs, remodeling, or maintenance), it may not have been turned back on fully. Make sure both the main shutoff and the water meter valve are fully open to allow maximum flow.

Professional Solutions for Low Water Pressure

If you’ve tried the DIY fixes above with little improvement, the issue may be more complex. That’s where our licensed plumbers come in. Here are a few professional solutions we often recommend:

Install a Water Pressure Booster

A water pressure booster pump connects to your home’s existing water line and increases pressure throughout your home. This is especially helpful if your water supply comes from a municipal system with consistently low pressure.

Detect and Repair Hidden Leaks

Even a small leak can reduce water pressure significantly while raising your water bill. To check for leaks:

  1. Turn off all water-using fixtures and appliances.
  2. Record the reading on your water meter.
  3. Check it again a few hours later. If it has increased, you likely have a leak.

Our team uses advanced leak detection equipment to pinpoint and repair leaks before they cause damage.

Increase the Size of Your Main Water Pipe

If your home’s supply line is undersized, it can bottleneck water flow. Older homes may have smaller galvanized steel pipes that corrode and restrict water. Upgrading to a larger diameter copper or PEX line can dramatically improve water pressure throughout your home.

When to Call a Professional

Low water pressure isn’t just an inconvenience—it can be a sign of more serious plumbing issues such as corroded pipes, hidden leaks, or municipal supply problems. At MR Plumbing Heating Air Electrical, we bring:

  • 53+ years of experience solving Chicagoland water pressure issues
  • Up-front pricing so you’ll know the cost before work begins
  • 24/7 emergency service if your water pressure suddenly drops
  • Licensed, background-checked plumbers who respect your home and time

If your water flow is weak, don’t settle for cold drips and slow sinks. Call MR Plumbing Heating Air Electrical today at 708-385-8607 or schedule an appointment online. We’ll diagnose the cause and restore strong, reliable water pressure to your home.

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