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A slab leak can be difficult to spot because the damaged water line is located beneath the concrete foundation of a home. Unlike a leaking faucet or exposed pipe, there may be no obvious puddle to point to the problem. Instead, homeowners often notice subtle changes such as unexplained water usage, damp flooring, low water pressure, or the sound of running water.
If people choose to ignore those indicators, then a relatively minor problem will eventually become a major one. According to the U.S. Environmental Protection Agency (EPA), there are 1 trillion gallons of wasted water annually due to leaks inside households in the country, which is equal to 9,300 gallons per year per household.
What Is a Slab Leak?
A slab leak occurs when a water supply pipe running underneath or through a home's concrete foundation develops a crack, hole, or failed connection.
The pipes carrying the water are normally concealed; hence it is difficult to detect them early enough. Such a leak may cause accumulation of water under the slab or even in other sections of the house.
Slab leaks can happen for several reasons, including:
- Corrosion or deterioration of older pipes
- High or fluctuating water pressure
- Shifting soil or foundation movement
- Poor installation
- Abrasion between pipes and surrounding materials
- Aging plumbing systems
Because the source is hidden, homeowners may initially mistake the symptoms for ordinary moisture problems or other plumbing issues.
5 Warning Signs of a Slab Leak
1. Your Water Bill Suddenly Increases
An unexplained increase in your water bill is one of the easiest signs to notice.
An unexpected increase in water usage when nothing about your household's water behavior has been altered may indicate the presence of a leak. The EPA advises you to inspect your water meter if there is no water usage. An increase in the readings on the water meter within a two-hour period when you stop using any water may indicate a leak in the house.
An increased utility bill doesn’t always imply that there is a slab leak. The leak may originate from other places like the toilet, the faucet, the sprinklers, the water heater, among other sources.
2. You Hear Running Water When Everything Is Off
Have you ever heard a sound of water flowing even though the faucets, fixtures, and toilets are not being used?
This kind of sound should be looked into.
A pipe leak that is concealed can at times make a hissing or rushing sound. If the sound originates below the flooring, especially at nighttime, it is best to consult a qualified plumber.
3. Warm or Damp Spots Appear on the Floor
Unexpected warm spots in the flooring can be a vital indication when your house has hot water pipes running underneath the slab.
The leakage of the hot water pipe can result in the warmness of the specific spot in the flooring as compared to other spots. There may be additional signs of leakage like moisture, warped flooring, wet spots in the carpet, etc.
But moisture can have many reasons. Therefore, you should conduct a professional inspection for detecting leaks first.
4. Cracks or Damage Appear in Flooring
Water moving beneath a concrete slab can affect flooring materials over time.
Depending on the severity and location of the leak, homeowners might notice:
- Cracked or buckled flooring
- Warped wood or laminate
- Loose tiles
- Damp carpet
- Discoloration around flooring
- Moisture appearing along baseboards
These signs are not proof of a slab leak by themselves. Foundation movement, humidity, plumbing fixtures, and other water sources can cause similar symptoms.
5. Water Pressure Drops
Sudden drops in pressure are usually a sign of something going wrong somewhere in the plumbing system.
If the water line under the slab has any major leakages, some of the water destined for your faucets and plumbing fixtures might not be making it to its destination due to seepage along the way.
Other causes of low pressure include blocked aerators, partially open valves, or problems with the municipal water supply. A plumber can diagnose the pressure problem for you and check whether it is related to a leak.
What Should You Do If You Suspect a Slab Leak?
Do not dismiss the issue simply because you cannot see water.
You can start with easy places like toilets, faucets, hose bibs, appliances, and irrigation systems. According to the EPA, you should look out for household leaks at these spots.
If everything seems fine, but the water meter keeps reading that there is water being used, you may have to think about getting a plumber.
A professional plumber can have special equipment to locate the exact place where the leak is, without ripping up your entire floor.
When Should You Call a Plumber?
In case of multiple indications such as increased consumption of water without any reason, weak water pressure, wet floor or continued running of water meter while everything is off, one should consider getting his plumbing system checked.
It is then when a plumber will be able to ascertain whether it is a slab leak or some other problem and will recommend the relevant solution.
Get Help From Ace Plumbing Heating & Air Conditioning
Suspecting a hidden plumbing leak can be stressful, especially when the source isn't visible. Ace Plumbing Heating & Air Conditioning can help homeowners investigate plumbing problems, identify potential leaks, and determine the right repair approach.
If you need a reliable plumber Sacramento homeowners can turn to for help with hidden leaks and other plumbing concerns, professional inspection can help address the problem before it leads to more extensive damage.
