The answer to 'toilet constantly running' is that a toilet running constantly is usually caused by a faulty flapper or fill valve. The most common symptoms are a toilet that continuously runs or fills, leading to higher water bills and potential water damage. The solutions can range from simple adjustments to replacing the flapper or fill valve, which are relatively inexpensive DIY repairs. However, if the issue persists or you are not comfortable performing the repairs, it's best to call a professional plumber to diagnose and fix the problem.
A constantly running toilet is often due to a faulty flapper, which is the rubber seal that lifts up to allow water to enter the bowl when flushed. Over time, the flapper can become worn, cracked, or misaligned, preventing it from creating a proper seal. This allows water to continuously flow from the tank into the bowl. Another common cause is an issue with the fill valve, which controls the water level in the tank and refills it after each flush. If the fill valve is malfunctioning, it can cause the tank to continuously refill, leading to the running toilet.