Overflowing toilets are most often caused by blockages or defects in the plumbing or the tank float mechanism that regulates water flow. Water builds up inside the toilet, but because there is a blockage where the water ... More »

To repair a running toilet, check and unblock the valve that lets water into the bowl, and lower the float to keep the water level below the overflow pipe. If needed, shut the water supply to the tank, empty the tank and... More »

The three most common causes of a leaking overflow pipe are increased water pressure, an overused washer or a faulty float valve. It is important to fix a leaking overflow pipe immediately, as it can lead to structural d... More »

Most home toilets use the gravity flow from the pressure in the tank to create a siphon to empty the contents of the bowl. If the tank doesn't fill, then the toilet won't flush. The problem often takes just a few minutes... More »

The function of a water tank float valve is to control water flow into the tank. Most water tank float valves use a long lever attached to a buoyant float called a ballcock. When the water level rises to a certain point,... More »

A water shutoff valve refers to a small local valve that is used to control the water flow to a plumbing fixture. This type of valve is commonly found under the sink or under the toilet tank. More »

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The water level in a toilet bowl tank can either be lowered or raised by making adjustments to the float that triggers the fill valve to stop the flow of water into the tank. The two common types of float triggers are th... More »