05/20/2026
Do you know how to replace a toilet flapper? Replacing a flapper is normal toilet maintenance and usually needs to be done every 5–7 years. Over time, hard water, cleaning tablets, and everyday wear can cause the flapper to break down, leading to a running toilet. To replace it, first turn off the water supply and flush the toilet to empty the tank. Remove the old flapper from the flush valve and disconnect the chain. Then attach the new flapper, connect the chain with 1-2 links of slack, turn the water back on, and test the flush. If you want a long-lasting flapper that resists chlorine and harsh water conditions, Korky flappers are designed for durability and long-term performance.