A running toilet is one of those home problems that is easy to ignore -until you hear that constant trickle every time you walk past the bathroom. The good news? In many cases, fixing a running toilet is a simple DIY project that takes less than an hour.
A running toilet can also waste a surprising amount of water. The U.S. Environmental Protection Agency notes that worn toilet flappers are one of the most common causes of toilet leaks, and even a small leak can waste significant amounts of water over time.
Here’s how to troubleshoot the problem before calling for help.
Step 1: Take the Tank Lid Off
Start by removing the lid from the top of the toilet tank. Take a look inside while the toilet is not being flushed.
You should see a few basic parts, including the flapper at the bottom of the tank, the fill valve, the float, and the chain connected to the toilet handle.
If you hear water running, watch what is happening. Is water continuously flowing into the bowl? Is the tank filling too high? Is the chain caught or pulling the flapper open?
Finding the source of the problem is half the battle.
Step 2: Check the Toilet Flapper
The rubber flapper creates a seal that keeps water in the tank until you flush. Over time, flappers can become worn, cracked, warped, or stiff and may no longer seal properly.
Here’s an easy test: Put a few drops of food coloring into the toilet tank and wait about 10 minutes without flushing. If colored water appears in the bowl, you likely have a leaking flapper.
Replacing the flapper is usually inexpensive and straightforward.
First, shut off the water supply using the valve near the base of the toilet. Flush the toilet to empty most of the tank, then disconnect the old flapper and chain. Take the old part with you when purchasing a replacement, or check your toilet manufacturer’s model information to make sure you get the correct type.
Install the new flapper, reconnect the chain, turn the water back on, and test the toilet.
Step 3: Check the Chain and Handle
Sometimes the problem is even simpler. A toilet handle that sticks or a chain that is too tight can prevent the flapper from closing completely.
Make sure the chain has a little bit of slack when the flapper is closed. If the chain is tangled, straighten it out and test the toilet again.
You can also gently jiggle the handle. If that stops the running, the handle or chain may need adjustment or replacement.
Step 4: Check the Water Level
If water continues to run after replacing the flapper, look at the water level inside the tank. If the water rises too high, it may flow continuously into the overflow tube.
Depending on the type of toilet, you may be able to lower the float or adjust the fill valve. The proper water level varies by toilet, so check the manufacturer’s instructions if you’re unsure.
When Should You Call a Professional?
If you’ve checked the flapper, chain, handle, and water level and your toilet is still running, the fill valve or another internal component may need to be replaced.
And if you notice water around the base of the toilet, a damaged supply line, or a leak that you can’t identify, it’s a good idea to get professional help rather than letting a small plumbing issue turn into a bigger one.
For homeowners in the West Valley, Damian’s Handyman and Remodeling Services provides home services including plumbing and other household repairs. Our company serves communities including Surprise, Sun City, El Mirage, Waddell, Avondale, Goodyear, Buckeye, Peoria, Glendale, and more!
A running toilet doesn’t have to be a major headache. Start with the simple fixes, keep an eye out for leaks, and don’t be afraid to call a local handyman when the problem goes beyond a quick DIY repair. Taking care of that annoying trickle today can help protect your home… and water bill!