Top 5 Water Leak & Water Pressure Questions We Got This Week (And What Every Homeowner Should Know)

A slightly higher water bill, a damp spot in the yard, lower water pressure in the shower, or a dripping pipe may not seem urgent. However, these seemingly minor symptoms often point to hidden leaks, failing plumbing components, or water supply issues that can eventually lead to costly repairs.

This week, our plumbing team received dozens of questions related to hidden leaks, water pressure issues, rising water bills, slab leaks, and wet spots in the yard.

Here are the Top 5 Water Leak & Water Pressure Questions We Got This Week—and what every homeowner should know.

1. Why Did My Water Bill Suddenly Increase?

This was the most common plumbing question we received this week.

If your water usage habits haven’t changed but your bill has increased significantly, there’s a good chance water is being lost somewhere in your plumbing system.

Common Causes of High Water Bills

Running Toilets

A running toilet is one of the most frequent culprits.

Many homeowners don’t realize a toilet can continuously waste water without making obvious noise.

Hidden Plumbing Leaks

Leaks inside walls, crawl spaces, ceilings, or under slabs often go unnoticed for weeks or months.

Dripping Faucets

A slow drip may not seem significant, but over time it can waste thousands of gallons annually.

Irrigation System Leaks

Underground sprinkler leaks are often difficult to detect until utility bills increase.

How Can You Check for a Leak?

One simple method is to monitor your water meter.

1. Turn off all water inside and outside the home.
2. Record the water meter reading.
3. Wait one hour without using water.
4. Check the meter again.

If the reading changes, a leak may be present.

When Should You Call a Plumber?

If you notice a sudden spike in your water bill and cannot identify the cause, professional leak detection can help locate hidden issues before they cause property damage.

2. Why Is My Water Pressure Low Throughout the House?

Low water pressure is one of the most frustrating plumbing problems homeowners experience.

When pressure drops throughout the entire home, the issue often extends beyond a single faucet or fixture.

Common Causes of Whole-House Low Water Pressure

Pressure Reducing Valve (PRV) Failure

Many homes use a pressure reducing valve to regulate incoming water pressure.

When the valve begins to fail, pressure may drop throughout the home.

Water Supply Problems

Occasionally, municipal water supply issues can affect neighborhood water pressure.

Hidden Water Leaks

Leaks can reduce available water pressure by allowing water to escape before reaching fixtures.

Aging Plumbing Pipes

Older galvanized pipes can develop internal corrosion that restricts water flow.

Signs the Problem Is System-Wide

• Weak pressure at multiple fixtures
• Slow-filling washing machines
• Reduced shower performance
• Pressure fluctuations throughout the day

Is Low Pressure Dangerous?

Not necessarily.

However, sudden changes in water pressure often indicate an underlying plumbing issue that deserves investigation.

3. What Is a Slab Leak?

Many homeowners have heard the term “slab leak” but aren’t entirely sure what it means.

A slab leak occurs when a water line located beneath a home’s concrete foundation develops a leak.

Because the leak is hidden below the slab, homeowners often don’t discover the problem immediately.

Common Causes of Slab Leaks

Pipe Corrosion

Over time, certain plumbing materials can deteriorate.

Foundation Movement

Small shifts in the foundation can place stress on water lines.

Abrasion

Pipes can rub against concrete, gravel, or other materials over time.

High Water Pressure

Excessive pressure can accelerate pipe wear.

Signs of a Slab Leak

• Warm spots on floors
• Unexplained moisture
• Higher water bills
• Mold growth
• Low water pressure
• Sounds of running water when fixtures are off

Why Early Detection Matters

Slab leaks can lead to:

• Foundation damage
• Flooring damage
• Mold growth
• Structural concerns

Prompt diagnosis often reduces repair costs significantly.

4. Why Is There a Wet Spot in My Yard?

A soggy patch of grass may seem harmless, especially after rainfall.

However, if one area of your yard remains consistently wet while surrounding areas stay dry, a leak could be present.

Common Causes of Wet Yard Areas

Underground Water Line Leaks

Water supply lines can develop leaks underground.

Sewer Line Damage

Broken sewer lines may release wastewater beneath the surface.

Irrigation System Problems

Damaged sprinkler lines frequently create persistent wet areas.

Warning Signs of an Underground Leak

• Grass appears greener than surrounding areas
• Soil remains muddy
• Increased water bills
• Sinkholes or depressions forming
• Reduced water pressure inside the home

Should You Ignore It?

Absolutely not.

Underground leaks rarely improve on their own and typically worsen over time.

The longer a leak continues, the greater the risk of property damage and water waste.

5. Can High Water Pressure Damage My Plumbing?

Many homeowners focus on low pressure, but high water pressure can be equally problematic.

In fact, excessive pressure often shortens the lifespan of plumbing components.

What Is Normal Water Pressure?

Most residential plumbing systems perform best between:

40–60 PSI

Pressure consistently above 80 PSI may create problems.

Potential Consequences of High Water Pressure

Pipe Damage

Increased stress can accelerate wear on pipes and fittings.

Water Heater Damage

Excess pressure places additional strain on water heater components.

Appliance Wear

Dishwashers, washing machines, and ice makers may experience premature failure.

Fixture Leaks

Faucets, toilets, and supply lines often develop leaks more quickly under excessive pressure.

How Is High Pressure Corrected?

A pressure reducing valve can often regulate incoming water pressure and protect the plumbing system.

Should You Have Pressure Tested?

If you’ve noticed:

• Frequent leaks
• Banging pipes
• Appliance issues
• Unusually strong water flow

a pressure evaluation may be worthwhile.

How Homeowners Can Prevent Leak and Pressure Problems

While some plumbing issues are unavoidable, many can be identified before major damage occurs.

Check for Water Leaks Regularly

Inspect:

• Under sinks
• Around toilets
• Water heater connections
• Outdoor hose bibs

Monitor Utility Bills

Unexpected increases often provide the earliest warning sign.

Address Pressure Changes Quickly

Sudden pressure changes should never be ignored.

Schedule Plumbing Inspections

Routine inspections frequently identify small problems before they become expensive repairs.

Warning Signs You Should Never Ignore

Call a plumber if you notice:

• Rapidly increasing water bills
• Water stains on ceilings or walls
• Wet flooring
• Persistent yard moisture
• Significant pressure loss
• Warm spots on floors
• Mold growth
• Unexplained sounds of running water

Early intervention almost always costs less than waiting for a major failure.