Why does my shower come on when I turn my tub on?

Most likely you are experiencing “shower-rise,” where the water can’t get out of the spout as fast as it flows through the valve. This causes the water to back up and come out the shower head.

Why does my shower head run when I fill the tub?





Most likely the problem is just the diverter on your tub spout, it’s probably not opening all the way, which allows some back pressure to build up in the pipe that eventually gets back up to the shower head. It could also be corrosion inside of the pipe that is having the same effect.

How do you fix a shower diverter switch?

How to Repair a Shower Diverter

  1. Turn off the water supply to your shower.
  2. Seal off your drain with tape so that small screws or other important parts are not lost down the drainpipe.
  3. Tighten the screws behind the faceplate of the diverter valve. …
  4. Disassemble the shower diverter. …
  5. Replace the diverter.

How do you fix a tub diverter?

Quote from the video:
Quote from Youtube video: And you want to want to scrape that and break that seal off of the edge of the spout. Then what you're gonna want to do is come and look underneath the spout. And if there's any sort of screw.

How do I know if my shower diverter valve is bad?

First, if the valve is engaged but water continues to come out of the tub spout only, the gate is severely damaged or has fallen out completely. Second, if the valve is engaged but the showerhead experiences low water pressure and water continues to drip from the spout, the gasket has failed or is starting to fail.

What does a shower diverter look like?





Quote from the video:
Quote from Youtube video: Comes in from the left cold. Water from the right the two are mixed in the valve. And will either go up to the showerhead or down to a tub spout a diverter directs which way the water goes.

Why is water coming out of shower head?

More often than not, a dripping showerhead is the result of worn or damaged inner seals. The rubber washers or O-rings in your shower act as a seal between your showerhead and shower hose, preventing water from leaking out. Over time, these wear down, and when they do, water starts to leak out.

What is a shower diverter?

What is a shower diverter? If you have a combo bathtub and shower, your faucet handle has a way of changing the flow of water from the tub spout up to the showerhead, and the other way around. When you use this handle, you are activating the shower diverter, which if the valve behind the wall that directs the water.

How does shower diverter valve work?

When the diverter valve is open, water flows directly through the faucet and into the tub. However, when you want to take a shower, you lift the knob or lever to close the diverter valve. This creates pressure, forcing the water flow upward and out of the showerhead.

How do you fix a shower diverter push button?



Quote from the video:
Quote from Youtube video: And we do that by removing the screws on each side of the knob. House in our case their flathead. Using the ancient rule of left to loose right to tight.

What is a tub diverter?

A bath and shower diverter is a device that diverts the flow of water either toward the tub spout (i.e., to the bathtub) or toward the showerhead. This product is commonly found in bathtubs equipped with a showerhead, such as in residential bathrooms and private commercial restrooms found in hotels.

How much does it cost to replace a shower diverter?

Replacing a shower diverter valve costs $225 to $575, including materials and labor. A shower diverter valve switches the flow of water between the bathtub spout or shower head and is typically controlled by a small handle located on the center trim plate or near the tub spout.

Where is the diverter valve?



It’s usually a lever that’s situated behind the bath taps that you can pull up or push down. System and conventional boilers don’t require a diverter valve.

Do you have to replace valve when replacing shower faucet?

The first issue to look for is if there are any leaks in the valve when you turn on the water. If there are drips, that’s a good indication that you should think about replacing the valve. Because, not only are you wasting water, but water that leaks behind the wall can cause rot as well as mold and mildew growth.

How much does it cost to replumb a shower?

Most homeowners pay around $310 to have a plumber replace the stem and internal parts only. Replacing the entire shower valve however, cost an average of $540 installed. This cost includes the new valve, removal of the old broken shower vale, as well as all parts and supplies, labor, and disposal of the old parts.

Is it worth it to Repipe a house?

Repiping can increase the value of your home.



Replacing those pipes also mitigates the chances of a plumbing leak disaster, which could definitely decrease the value of your house. Older pipes may break which causes a leak, and in turn, water damage that may not be noticed right away.

Does Repiping a house add value?



Old & Damaged Plumbing Can Keep a Home From Selling At All



They won’t even pursue negotiations or ask for repairs. Repiping can automatically increase the value of your home by just making it sellable. The value would go from zero to your listing price.

How long do shower valves last?

A properly installed shower valve should serve you well for a long time. Even if you live in an area with hard water that causes limescale build-up in your appliances, you can expect to have a shower valve work well for about four or five years.

Can a shower valve go bad?

Hot water mixing valves can incur damage such as corrosion over time. If you have a clog your best bet is to start over with a brand new hot water mixing valve.

How do I know if I need to replace my shower cartridge?

At some point you will need to replace yours. The 2 clear signs that your shower cartridge is bad is when your faucet starts dripping/leaking or when the water pressure to the shower is low. A bad cartridge may also make the faucet handle difficult to turn or to get stuck and fail to turn on the water.