Adjusting the water level in a toilet bowl is a simple plumbing task that can help to improve the efficiency of your toilet and prevent leaks. The ideal water level is about 1 inch below the top of the overflow tube. If the water level is too high, it can cause the toilet to run constantly or overflow. If the water level is too low, it can prevent the toilet from flushing properly.
There are two main ways to adjust the water level in a toilet bowl: by adjusting the fill valve or by adjusting the flapper valve. The fill valve is located at the bottom of the tank and controls the flow of water into the tank. The flapper valve is located at the bottom of the tank and prevents water from leaking out of the tank into the bowl.