Bathtub Fills With Water While Showering: Common Causes and Solutions

Introduction

Did you know that a clogged bathtub drain is responsible for 90% of bathtub water issues during showers?

Picture this: You're enjoying a refreshing shower, and suddenly, you notice the water level rising around your feet. It's frustrating and can be a sign of deeper plumbing issues.

In this guide, we'll walk you through understanding why your bathtub fills with water while you shower and how to resolve it.

By the end of this post, you'll know the common culprits behind this issue and how to fix them, ensuring your showers remain stress-free.

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1. Clogged Tub Drain

A clogged tub drain is the most common reason your bathtub fills with water during a shower. Hair, soap scum, and other debris can accumulate over time, blocking the flow of water.

• DIY Snake Method 1. Remove the overflow plate located under the tub spout. 2. Insert a plumbing snake into the pipe. 3. Rotate and push through the clog, pulling out hair and debris. 4. Repeat until the flow improves.

• Professional Help If snaking doesn’t clear the blockage, it's time to call a plumber.

2. Faulty Diverter Valve

The diverter valve switches water flow from the tub faucet to the showerhead. A malfunctioning valve can cause water to flow from both, overwhelming the drain.

• Replacement Needed - Contact a local plumbing repair service to replace the diverter valve.
  • Consider checking Estimero's guide for cost estimation.

3. Main Sewer Line Clog

A serious issue that affects multiple drains in your home is a clogged main sewer line. This causes backups and slow drainage throughout the house.

• Professional Inspection - Call a plumber for a camera inspection of your main sewer line.
  • Use an auger to clear blockages if identified.

4. Full Septic System

For homes on a septic system, an overflowing tank can cause water to back up into the bathtub during showers.

• Septic Pumping - Schedule a septic tank pumping service every 3-5 years.
  • Set reminders to avoid future issues.

5. Malfunctioning Sump Pump

In homes with basement bathrooms, a sump pump facilitates drainage. If it's malfunctioning, water can accumulate during showers.

• Check Power Supply - Ensure the sump pump is plugged in and the circuit breaker is on.
  • Hire a plumber to check for mechanical failures.

Tips and Reminders

• Regularly clean your drains to prevent clogs.

• Check and maintain plumbing fixtures to ensure proper functionality.

• Schedule routine plumbing inspections to catch issues early.

Conclusion

Experiencing a bathtub that fills with water during a shower is more than an inconvenience—it's a sign that something needs fixing. By addressing the root causes using the solutions provided, you can enjoy uninterrupted, relaxing showers.

CTA Ready to solve your plumbing issues with precision? Try Estimero free today at Estimero.com — Your smarter way to estimate any project.

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Frequently Asked Questions

Q1: Why is water coming out of the shower when the tub is on?

• A faulty diverter valve is likely to be the reason. It needs replacement.

Q2: How do you snake a bathtub drain?

• Remove the overflow plate, insert a snake, and clear the blockage.

Q3: How often should a septic tank be pumped?

• Every 3-5 years, depending on usage and household size.

Q4: What are signs of a clogged main sewer line?

• Slow drainage in multiple fixtures and gurgling sounds.

Q5: Can I replace a diverter valve myself?

• Yes, if you're comfortable with plumbing tasks, otherwise, hire a professional.

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