Text Box: 469.878.8061

WATER LEAKS


Finding a water leak can save you money. If you donít think water is a precious resource just look at your water bill. You can follow these easy steps to see if you have a leak in your incoming domestic water or sprinkler system. 

You may have a Domestic Water leak if . . .
You can hear the continuous sound of water (like a toilet running) when nothing is turned on.
Your water meter reading changes when you aren't using any water. (Mark the indicator on your meter; don't use any water for an hour; then check the meter. If the indicator moved, you may have a leak.)
Your water bill escalates over a period of weeks or months. (Compare your bills month to month.)
Your walls or floors have wet, spongy, moist or discolored areas when nothing has been spilled.
You can smell foul odors coming from floors or walls near drains or sewers.
Your building foundation cracks, vegetation grows unevenly, or earth shifts for no apparent reason.
You find warm spots on your floor, particularly on concrete slab floors.
You see water seeping from the bottom of bricks or siding where it meets the slab.
9.   Constant wetness in your yard even if there has been no rain or sprinkler use.

What is a slab leak? 
A slab leak can be domestic water (that you drink) leaking under the concrete slab of your home. This is the pressurized water coming into your home. This leak is a constant leak and can usually be heard and detected by a noise of running water in some cases. One other symptom you have a domestic leak are higher than normal water bills. The other type of slab leak is the sanitary sewer or drain lines leaking under your concrete slab. This might be something you do not notice because everything seems to be working fine.

How do I know I have a Domestic Water Slab Leak and how do I find it? 
The first thing we do is pressure test the Domestic water system to determine if you have a leak. The first thing to do is 
to isolate the hot and cold water systems. This is done by turning off the ball valve or gate valve at the hot water heater. 
This valve may need to be changed if it is in poor condition or not working properly. If the leak stops at this point, we 
know we have a leak in the hot side of the domestic system. If the leak continues, the leak is on the cold side of the 
system. Letís assume the leak is on the cold side. The next step would be to listen to the service valves at the appliances 
and fixture. This will give us a sonic or sound register. This sound register will tell us which end of the house to look for 
the leak in. The next step would be to energize the water lines under the slab in the affected area. We would locate the 
water lines and mark the slab for reference points. This will tell us how your water service runs under the slab. The next 
step is take sound reading with your leak locating equipment over the areas that you have located the lines. This first reading is with the water on. Next, we turn off the water at the street and turn off the valve at the water heater and energize the system with air. The reason we do this is to localize the leak. We energize the system with air from 1 psi to over 20 psi. Warning, if the system is PVC this could be dangerous. PVC is not rated for air and will void your warranty. Once the system is energized with air we take another set of readings and make a final determination as to the location of the leak. At this point we are able to give the customer an estimate for repairs. 


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Terry D. Parker

M-37782

Texas State Board of Plumbing Examiners, 929 East 41st, Austin, TX 78751 (512)456-2145