![]() Pushing the known down opens the spout and water flows out through the spout thanks to gravity. When the knob is pulled up, the piece of nylon blocks off the spout’s opening so that the water can flow to the shower head. There is a groove inside the spout where the piece of nylon moves up and down. The knob is connected to a piece of nylon inside the spout which works like a gate. This is the knob that you pull up to send water to the shower head or push down to have water flowing through the spout. If you have a single or double handle shower/bathtub faucet, you will see a small knob at the top of the tub spout. How to Fix a Shower Diverter that Leaks when the Shower is on Now let us look at how to fix a bathtub faucet that leaks when the shower is on, starting with a single or double shower bathtub handle faucet. You can try to clean the diverter groove buy if that fails go ahead and replace the tub spout. You can decide to only replace the washer but if the valve has been in place for a long time you should replace the whole valve.Ī single or double handle bathtub faucet that is leaking when the shower is on is caused by a worn out or stuck shower diverter. ![]() If you have a three handle bathtub faucet which is leaking, the shower diverter’s valve seat washer is worn out and no longer sealing. With these faucets, the bathtub spout has no diverter knob at the top. If you have a three handle shower faucet, the left and the right handles will turn the cold and hot water on or off, while the middle handle controls the shower diverter valve. Its tub spout will also have a shower diverter knob at the top. The tub spout will have a diverter knob at the top.Ī double shower faucet has 2 handles, one for the hot water and the other for the cold water. With a single handle shower faucet, the handle is used to adjust both the temperature and pressure of the water flowing to the shower head and tub spout. While repairs are possible, the best thing would be to replace the bathtub spout or the shower diverter valve.ĭifferent houses have different valve installations. If your bathtub faucet spout is leaking when the shower is on, it means that the shower diverter valve is no longer sealing due to a worn out washer or minerals deposits. When you have a bathtub-shower combo in your house, you must have a shower diverter knob on the tub spout or a separate shower diverter valve to divert water from the tub spout to the shower head if you want to take a shower.
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