Why Is Water Coming Out Of The Shower Head While Filling Bathtub?

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There are several possible reasons why water is coming out of the shower head while you’re filling your bathtub. It may be caused by a leaky diverter valve. The good news is that this issue is easily remedied. To start, you can replace the diverter valve.
High water pressure

If the water pressure in your shower is increasing while you’re filling the bathtub, you might have a faulty spout or valve. Incompatible spouts will not fit your faucet, and may also not be long enough to direct water. what the heck is Thousand Oaks plumbing can cause the water to rush out both ends of the spout at once. A pressure reducing valve will help prevent this issue.

A faulty water heater is another possible cause for low pressure in the shower. If this is the case, call a plumber to check whether the unit needs to be replaced. Similarly, corroded pipes can cause low pressure. Mineral deposits can block the supply pipes and disrupt the water flow. Finally, a small plumbing leak may also contribute to low water pressure.

Regardless of the cause, you need to fix this issue quickly to avoid unnecessary water damage and expensive repairs. First, check the valve. It should divert water from the bathtub to the shower. If it isn’t, then you may need to replace the showerhead.
Leaking diverter valve

If you find that the diverter valve of your bathtub is leaking when you fill it, there are two options: either you call a plumber or try to fix it yourself. The good news is that this problem is quite easy to fix. You can follow some simple steps to replace the diverter valve, including taking apart the valve assembly.

First, unplug your bathtub spout from its base. In case the spout has a screw fastening, you should take the diverter valve apart and check its components. If you can’t do that, you may want to replace it.

The valve is connected to a cartridge. This cartridge is similar to the one you use for your hot and cold faucets. It consists of a cylinder with a rubber gasket in it. When you press the handle in the direction of water flow, a rubber gasket compresses, sending water to the spout. The handle is then turned the other way, tightening the gasket over the pipe leading to the tub.
Incorrectly installed tub spout

If you’re experiencing a water leak from the shower head while filling your bathtub, it’s likely that the tub spout is not properly installed. To find out if your spout is improperly installed, you should consult a plumber to fix it. Replacing the spout is relatively simple and usually only costs $20. Make sure you carefully read the instructions provided with your new spout.

A badly installed tub spout can also cause excessive water pressure. It will prevent water from properly connecting to the valve and may cause back-pressure to occur. The spout may be too small or too short for your tub. If concept of plumber Thousand Oaks persists, you may need to replace the spout.

Before making any repairs, remove the tub spout from the valve and inspect the plumbing underneath. Check for pex, which is usually blue or red.
Incorrectly installed learning about Thousand Oaks plumbing

If water is pouring out of the shower head when you fill the bathtub, it is probably because the flow director has been installed incorrectly. First, check the valve to make sure it is not upside down. If it is, replace it.

Next, check the diverter. If this piece is loose, it might be damaged and needs to be replaced. A replacement part is available at a hardware store. The new part should fit onto the water pipe like the old one did.


The diverter is the valve that directs water from the bathtub faucet to the shower head. A leak in this diverter valve can cause water to run back through the bathtub faucet. If the diverter valve is rusted or malfunctioning, it will prevent the diverter from shutting off all the way. If the diverter is leaking water in the bathtub, you should replace it.

If the diverter is causing water to come out of the shower head when filling the bathtub, the flow director is likely installed incorrectly. In some cases, a two-handle shower requires that the flow director be reversed. Alternatively, you can install a volume control valve between the shower arm and the shower head. However, this will not provide a positive shutoff.


Candu Plumbing & Rooter
22144 Eccles St, Canoga Park, CA 91304
(855) 522-2638
https://www.canduplumbing.com/