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9611 SE 36th Street
Mercer Island, WA 98040
Phone: 206-275-7662
Fax: 206-275-7663
Contact: Ross Freeman
Email: ross.freeman@merce. . .
Hours: 8:30 am - 5:00 pm (Mon - Fri)
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Water Leaks

Repairing water leaks is a great way to reduce the use of water that’s just being wasted. Repairing water leaks will always save you money.

 

It’s Only A Small Drip…Right?
Slow drips of water can add up quickly. A toilet that “keeps running” after you flush or a sink that drips after it is turned off can waste thousands of gallons of water a year. If the drip is on the hot water side, you are paying for wasted energy too. Fix leaks as soon as you find them. They won’t go away on their own.

 


Toilet Leaks

Toilet leaks can range from small to large, constant or random. Many are even silent. Even a small, silent leak can easily waste $50 per year in water and sewer costs. Large leaks can waste much more. What’s important to remember is that most toilet leaks are relatively easy to fix. In a properly functioning toilet, no water should move from the tank to the bowl, unless it has been flushed. A leaking toilet loses water from the tank to the bowl without being flushed. Checking for a leaky toilet:
  1. Remove the tank lid (Don’t worry, this water is clean until it enters the bowl.)
     
  2. Add some food coloring or a dye tablet to turn the water a different color. Put the tank lid back on.
     
  3. After an hour, look in the bowl. If you see colored water, you have a leak. If the water is clear, water is not leaking from the tank to the bowl. If you do have a leak, there are a number of possible causes. If you remove the tank lid and can easily identify the cause, correct the problem and try your leak test again. Consider that “fixes” such as bending the float back to shape or adjusting how the rubber flapper falls often end up failing soon afterward. In most cases, you will simply want to replace the toilet flapper (the rubber thing that keeps water in the tank) and/or the filling mechanism. These are available at hardware stores and home centers for about $8 each.

Leaking Faucets

A leaking faucet is frequently the result of a bad rubber washer. The washer on a sink is typically located under the handle. A washer is relatively easy to replace, if you have the right tools. It does require shutting off the water under the faucet, and removing the handle. Check local home centers or the internet (keywords “repairing leaky faucets”) for directions on how to repair faucet leaks. If you don’t feel comfortable doing the repair yourself, a plumber may be your best option. Remember, even if you have to pay a plumber to fix the leak, you will end up saving money in the long run.


Have A High Bill, But Don’t See A Leak?

Sometimes you may have a leak and not even know it. The best indication will be a high bill compared to past use or compared to how much water your neighbors may be using. There are often two reasons for mysterious water leaks: a leaking toilet or a leak between the meter and the house. A leaking toilet is more likely to be the cause. Outdoor leaks are relatively rare. The first step is to determine whether you actually have a leak, or are just using more water than you expected. Many customers are surprised just how much water can be used for activities such as watering the lawn. Below are directions for checking mysterious water leaks.
 

 

Checking Your Meter For Mysterious Water Leaks
  1. Locate the water meter. It should be near the street under a metal, plastic, or concrete lid. The water meter is your indicator of water use. When water is not being used, nothing on the meter should be moving. Water meters have numerals or spinning dials, which record usage. Most meters also have a small “leak detector” arrow, which spins to record the lower volumes of water common with leaks.
     
  2. Turn off every water-using item inside and outside the home or building.
     
  3. Check the meter. Watch the meter for a minute or more. If the leak detector dial is moving, you have a leak. In some cases, it may move back and forth very slightly, as water pressure in the street fluctuates. If it moves forward continually, even at a slow rate, you have a leak. You may also want to check the main meter reading (numbers) at a set time, and then come back an hour later, after you know no water has been used. If it has a higher reading, there is a leak. If you suspect a toilet may be the culprit, turn the water off from the toilet shut-off valve and check the meter again.
     
  4. If you still can’t locate the leak, find the shut-off valve for your home or building. It can be indoors or outdoors, but should be near the location where the water line enters the building. If you don’t know where the shut-off valve is, follow a straight line from the water meter to your building, and look for it. If you have a very large building, it is possible you have more than one main shut-off valve.
     
  5. Confirm the location of the leak. If the main shut-off is closed and the meter has stopped, the leak is not between the meter and the building. If the meter still runs with the main water shut off, your leak is between the meter and the building. Since outdoor leaks are relatively rare, be sure to double-check that all indoor fixtures and outdoor hose and irrigation lines are off. Call a plumber to fix underground outdoor leaks.

Leaking Pipes

If you see a water leak along a pipe and you are not sure how to repair it, call a plumber. If the leak is on a City-owned pipe, call the Public Works Department at (206) 275-7608.

 

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