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The Overnight Water Waste from a Toilet That Won't Stop Running

09/01/2025 | Hawkrown

If the toilet hasn’t reset overnight, how much water does it waste? For those who are new to using toilets, this may not be well understood. But don't worry, let’s take a closer look together.

How much water does a toilet waste overnight if it hasn’t reset

Different toilet tanks have varying water refill speeds. Taking a 6-liter toilet tank as an example, it takes about 20 seconds to fill up. Therefore, in one minute, the water usage would be 6 × 3 = 18 liters. In one hour, this translates to 18 × 60 = 1080 liters. Over a night, assuming 12 hours, a toilet that hasn’t reset could waste about 12 tons of water.

Does a toilet that hasn’t reset waste water

Absolutely, it does waste water. It's similar to leaving a tap running for an entire day. You can easily test this by checking the size of your toilet tank and how long it takes to fill up, then estimating the water inflow rate multiplied by the time. You can open the back cover, rotate it counterclockwise, and check if any foreign objects are blocking it. If so, simply remove the obstruction to allow it to reset. It’s also possible that the spring in the toilet is damaged, in which case you'll need to replace it. When replacing, make sure to know the brand and model so you can get the right one from a specialized store.

Tips for cleaning toilets

1、Vinegar Cleaning Method:

Mix vinegar and tap water before pouring it into the toilet. Let it soak for about half a day, and stubborn stains can usually be wiped away easily. After cleaning the toilet, you can spray white vinegar on the inner sides and leave it for several hours before flushing, achieving disinfection and deodorization effects.

2、Cola Cleaning Method:

Pour leftover cola into the toilet and let it soak for about an hour. This will typically clean away any stains. If it’s not completely clean, a brush can be used for scrubbing. The citric acid in cola helps remove the stains in the toilet.

Editor's Summary:After reading the above information, you should have a better understanding of how much water a toilet can waste overnight if it hasn’t reset. For more related information, please continue to follow our website, as we will present more exciting content in the future.

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