Uploaded April 2025 | Updated September 2026, 3 weeks ago

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Is your toilet constantly running? This common problem can have an impact on your water bill. More times than not, your toilet flapper or flush valve seal is the cause of your running toilet. As the flapper or seal slowly leaks, the fill valve turns on, so you hear your fill valve running.

Different parts of the country deal with different types of water, all shorten the life of a toilet flapper. The most common and quickest fix is to replace your leaking flapper or seal.

Find a replacement flapper or seal here: korky.com/parts/flapper-seal-replacements