Here’s a thing most people don’t know until they get a shocking water bill: a toilet that keeps running after you flush can waste up to 200 gallons of water every single day, according to the EPA. That’s not a typo. A toilet. Just sitting there. Draining money.
The sneaky part is that it often doesn’t look like anything is wrong. No puddle on the floor, no obvious drip. You might just hear a faint hissing sound or notice the toilet seems to refill randomly. Easy to ignore. Really easy. But that 200 gallons a day adds up fast — and more severe leaks can reportedly reach between 1,000 and 4,000 gallons a day depending on how bad the problem is.
There are documented cases of homeowners ignoring a running toilet for months and ending up with water bills in the thousands of dollars. That’s what can happen when something small gets ignored long enough.
The fix is usually cheap. A worn flapper (the rubber piece inside the tank) is the most common cause, and it typically costs between $5 and $15 at any hardware store. You can replace it yourself in about 10 minutes with zero plumbing experience. Not every fix is that simple, but it’s the right place to start.
If you’re renting, this is generally your landlord’s problem to fix — but you still want to catch it fast. Depending on your lease and your state’s laws, tenants can sometimes be held responsible for unusually high water bills caused by unreported leaks. Report the problem to your landlord in writing right away so there’s a clear record.
Bottom line: if your toilet is running, don’t shrug it off. A quick check now can save you hundreds of dollars later.