Water Comes Out Of Tub But Not Shower

What To Do When Water Comes Out Of Tub But Not Shower

ByScott Robillard Updated:

One common issue of connected tub and shower is: water not coming out of the shower or tub. And while it’s possible to face both simultaneously, the shower issue tends to happen the most as the tub remains on the lower level. But what exactly explains when water comes out of tub but not shower?

When the water is not coming from the shower, you are likely dealing with a diverter problem. This part of the fixture controls the water flow and directs the water from the tub to the shower and vice versa. And it can get stuck in position.

But that’s not the only reason why you may face this issue. There is another potential reason that you should know. And the good news is that this discussion sheds light on both and offers some easy fixes you can follow without professional help.

Potential Causes of the Problem

Before discussing the fixes, you need to understand the main reasons first. So, here’s a brief description of the two potential causes that can make the shower not get any water but the tub does –

Potential Causes of the Problem

1. Issue with the Diverter

If you take a closer look at the tub spout, you will notice a knob on the end. It’s called the shower diverter. As discussed earlier, the shower diverter directs the water to the shower head from the tub spout.

But as the diverter’s flapper ages, it may lose the ability to properly divert the water from one to another. That is generally when you don’t get water from either the tub or the shower.

In fact, issues with the shower diverter can also lead to other problems, such as dripping from the faucet handle and the spout.

2. Clogged Showerhead

It’s not just the diverter that can lead to this issue with the shower. It could also be due to mineral deposits. And if your water supply offers hard water, you might want to check on clogs before inspecting the diverter.

The thing is, hard water contains a lot of minerals. And as this mineral-rich water flows, it tends to make some sediment settle on the lines and the showerhead. Now, when there’s an excessive amount of it, the pipe or fixture fully clogs up.

Troubleshooting Shower Not Getting Water but Water Comes from Tub

You do not need to call a plumber to troubleshoot this issue. Instead, follow these simple steps to get the shower working like it’s brand-new –

1. Fixing the Clogged-up Showerhead

As mentioned earlier, you are likely dealing with a clogged showerhead if you have a hard water supply. And to clear out the nozzles of the showerhead, you will need to go through the following steps –

  • Wrap a plastic bag around the showerhead
  • Fill vinegar into the bag
  • Seal the bag with rubber bands and make sure that the nozzles are submerged
  • After a few hours, remove the bag
  • Get a clean brush and start scrubbing the holes
  • Use a paste with baking soda and water to do further cleaning of the holes
  • If the showerhead is still clogged, you should take it apart and clean it with vinegar

2. Shower Diverter Valve Troubleshooting

So, if it’s not a clogged showerhead, the diverter valve is certainly the root cause of the issue. Here are the steps you need to take to troubleshoot it –

  • Close the shut-off valve to stop the flow of the water
  • Remove the old spout by unscrewing the setscrew underneath it
  • If there’s no set screw, you will need to rotate the spout counterclockwise to remove it
  • Locate the nut that’s on the stem of the diverter and unscrew it
  • Pull the diverter out
  • Examine it and note down its measurements
  • Purchase a new shower diverter that matches the faulty one
  • Put the new diverter in place and secure the screw
  • Secure the old spout and open the shut-off valve

Here, if you can not determine the size of the old diverter, look at the manual of the shower system. It should have information on all the parts. Based on that, purchase a replacement unit.

Preventive Measures

It’s possible to enhance the lifespan of shower diverters and lower the chances of the showerhead getting clogged. Take a look at these tips –

  • Install a water softener to reduce mineral buildups within the plumbing system
  • Reduce the wear and tear on the diverter by making the water flow from the tub for a while and then switching the flow to the shower
  • Occasionally check the diverter lever and make sure there’s no sign of clogs
  • Address and take necessary measures as soon as you spot any leaks

Final Words

Regarding the issue of water coming out of the tub but not the shower, it’s generally the diverter to blame. But a clogged showerhead can also be the culprit. No matter what it is, troubleshooting the problem should be a piece of cake for you now.

However, remember that you will need to follow a different set of troubleshooting steps if you have an electric shower.

Hi, Scott Robillard here! I represent the small team of plumbers behind FaucetFam.com who love to write what we have learned. Common problems and easy fixes are the main topics we discuss on this site – as knowing these surely helps!

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