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*The Angi rating for Sewer Cleaning companies in Knapp, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Sewer Cleaning needs.

*The HomeAdvisor rating for Sewer Cleaning companies in Knapp, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Sewer Cleaning needs.

Last update on January 19, 2026

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Legendary Plumbing, LLC
4.3(
6
)
Sewer Main - ClearSewer Main - Clear - For Business

Serving Knapp, WI and surrounding areas

In business since 2019

Free estimates

Legendary Plumbing, LLC, is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient and professional way. Our pledge is to create successful relationships with our customers, employees, community by building trust and treating every project with the utmost integrity and exceeding expectations. \n \n\nWe look forward to working with you!

Kitchen remodel
Wells
Remodel
Shower
Response time1 day
Recommended by83%of homeowners
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Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)
Sewer Main - ClearSewer Main - Clear - For Business

Serving Knapp, WI and surrounding areas

In business since 1971

Credit card accepted

"The called Jayco plumbing in Amarillo, TX. They located my buried sewer line and cleaned out both sewer clean-outs to my new house."
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+2

Recommended by65%of homeowners
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Sewer Cleaning questions, answered by experts

If you’re wondering whether rats can come up the toilet, the unfortunate answer is yes, it’s possible, though it’s extremely rare. These rodents are excellent swimmers and can travel through sewer pipes in search of food, and they may follow plumbing lines leading to your home if they’re drawn by the scent of scraps and waste. The toilet’s U-bend holds a small pocket of air, which can help a rat catch its breath before making its final push into your bathroom. While more common in cities with larger rat populations, this can happen anywhere with connected sewer systems; sealing entry points and keeping drains clean can help reduce the risk.

While some chemical drain cleaners with hydrochloric acid can dissolve hair, this method is not recommended as it can also destroy your plumbing pipes. A common DIY alternative is using baking soda and vinegar, which can help break down the clog but will not actually dissolve the hair. The best and safest method for clearing a hair clog is to remove it manually. You can use a drain snake, a straightened wire hanger with pliers to fish out the clog, or have a plumber use a professional auger for more severe blockages.

In most cases, drain cleaners will not clear a clogged sewer line, and they’re likely to damage your plumbing. Sewer lines are several inches wide, meaning any material that clogs it will need to be large. Drain cleaner can work on small clogs, but it usually won’t clear a larger one in a sewer main. Drain cleaners can also easily damage and corrode your plumbing with prolonged contact, and a clog will keep the cleaner in contact with the pipes for an extended period. Hire a professional sewer cleaner instead for a safe fix.

If used correctly and sparingly, root killer shouldn’t damage your pipes. Make sure to follow the instructions on the back of the bottle or the company’s website to avoid any unintended damages. However, when it comes to copper sulfate, it’s better to avoid it. This type of root killer can damage your plumbing and the surrounding environment.

There are several common signs that your main sewer line may be clogged. Key indicators include multiple fixtures in your home draining slowly, gurgling sounds coming from drains or toilets, and water backing up into showers, sinks, or toilets. You might also notice water backing up from the plumbing system's drain cleanout, water in your basement drain, or unexplained wet patches on your lawn. Foul odors, such as the smell of raw sewage or rotten eggs, are another common symptom. The most reliable way to confirm a main sewer line clog is to hire a professional plumber to perform a camera inspection.

The Knapp, WI homeowners’ guide to sewer cleaning services

From average costs to expert advice, get all the answers you need to get your job done.

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