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Help! Water Comes Out of the Shower Drain When I Flush the Toilet

slowly draining water in a shower
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Does water come out of the shower drain every time you flush the toilet? If yes, don't worry; you're not alone. This is a common problem that many households face. Below, we will help you understand the underlying reasons behind this problem and what professional plumbers can do to help.

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What Causes Water to "Back Up" Into Showers and Other Drains?

Before we dive into possible solutions, let's discuss the most common culprit behind this issue: a blocked main sewer line. What is the main sewer line? It's the large underground pipe system that connects your home’s plumbing to the main sewer line in the street.

If there is a blockage in this pipe, sewage waste can't flow properly and will often back up into other drains in your house, like the shower drain.

Numerous items and materials can block a sewer line: grease, sediment, wet wipes — you name it. Tree roots growing near sewer lines are another common cause for water backup because they can obstruct or even break the pipes.

Other Reasons Why Water Backs Up

Another reason for water backing up when you flush the toilet may be a blockage in your home's drain lines. These pipes drain water from your sinks, toilets, showers, and water-using appliances. Water can also back up due to old pipes that have cracked or become damaged over time.

What to Do When Water Backs Up Into Drains

Now that we know why water backs up, let's discuss the solutions. In most cases, it's best to leave the problem to the professionals. An experienced plumber can perform a sewer camera inspection to identify the underlying cause of the clog. This technique involves using a small camera to examine the inside of the pipes and identify blockages or damage in the home's drain lines or sewer line.

Once the plumber has identified the problem's cause, several techniques exist to fix it. One standard method is hydro-jetting, which involves using high-pressure water jets to clean and clear out the pipes. Another technique is drain snaking, which involves using a long, flexible tool to remove the clog from the pipes.

How to Prevent a Clogged Sewer Line and Drain Pipes

The best way to avoid costly plumbing repairs on your home's drain-waste system is to take preventative measures. Make sure you never flush items like feminine hygiene products, diapers, or wipes down the toilet. Avoid pouring grease and fat down the drain as well. Additionally, it's a good idea to have your sewer line inspected by a professional plumber at the first sign of an issue.

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Bottom Line

In conclusion, water from the shower drain when you flush the toilet can be annoying, but it's a fixable problem. In most cases, it's best to call in a professional plumber to identify and fix the issue, saving you time and trouble. Remember to avoid flushing any trash other than toilet paper down the toilet and regularly clean your drain stoppers to prevent blockages from building up. With a little effort and care, you can avoid this problem altogether.

Milford Drain Cleaning

From clogged drains to broken pipes, Tri-City Heating and Cooling provides fast and effective drain cleaning services. With years of experience, we can diagnose any issue quickly and provide the best solution for your plumbing needs. Don't let a minor problem become big — call Tri-City Heating and Cooling now at (203) 303-5700 if you live in Milford or the surrounding areas!

Need help with a clog? Call (203) 303-5700 today to book an appointment with our trusted plumbers.

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