Plumbing Tip: Never Attempt to Repair a Slab Leak Yourself

Never Attempt to Repair a Slab Leak Yourself

While plumbing issues should almost always be attended to by a professional, it is absolutely imperative that you do not attempt to repair a slab leak on your own.

slab leak
What Is a Slab Leak?

There are water lines that run below the concrete flooring of homes. A slab leak occurs when one of those water lines begins to leak.

Signs of a Slab Leak in Your Home

There are several indications that you may have a slab leak in your home. The signs may include (source):

  • No hot water
  • Cracks in your flooring or walls
  • The audible sound of running water when the water is, in fact, tuned off
  • Mildew
  • Low water pressure
  • Shifting foundation
  • Moisture under your carpeting
  • Increased water bills

How to Find a Slab Leak

Without the use of proper equipment and professional assistance, you will cause damage to your home in the search for a slab leak. Plumbers utilize electromagnetic pipeline locators as well as electronic amplification equipment to pinpoint the exact location of the leak. Without these advanced instruments, finding the leaking water line would cause excessive and expensive damage.

Once the it is found, your plumber will be able to fix the leak fairly quickly and easily.

What Causes a Slab Leak?

Generally, slab leaks are caused by a reaction between copper pipes and drinking water; however, there are typically four reasons a slab leak could occur:

  • Electrolysis—Electrolysis can occur when two dissimilar metals come in contact with each other or when your soil has a high metal content.
  • Vibrations, expansion and contracting that happen from water flow within the pipes can cause contact against concrete, gravel, or other pipes. Over time, the constant vibration can result in a leak.
  • High water pressure can cause damage to improperly installed pipes under the slab. A good way to avoid this is to install a pressure reducing valve.
  • Construction Issue. Faulty workmanship during construction can result in slab leaks.

How Slab Leaks Are Fixed

There are several options your plumber will chose from when it comes time to fix the slab leak. The method he or she chooses depends on the assessed condition of your leak.

  1. Repipe or Rerout. This method entails replacing the entire water line that is leaking and problematic. This is perhaps the most common solution, as it is typically the most effective for older plumbing systems with a history of leaking.
  1. Epoxy Pipe Coating. Typically used for systems with many small leaks, this approach involves in-place pipe coating that is applied throughout the inside of the plumbing.
  1. Spot Repair. Spot repair involves opening up the slab at the location of the leak and simply repairing the leaking water pipe. This method is generally the most cost effective option for new construction.

How Long Do Slab Leak Repairs Take?

Depending on the condition and damage, a slab leak fix typically takes no longer than two days. This includes locating the leak and preparing the site for repair.

Contacting Professional Help

If you have any of the listed signs or symptoms of a slab leak, it is crucial that you seek professional assistance right away. Stalling or attempting to resolve the issue yourself will result further damage.

If you’re concerned you may have a leak, contact Moon Valley Plumbing today at (480) 588-1926. We are proud to be Arizona’s premiere plumbers since 2003.

We’re honest. We’re affordable. We’re good.

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