Experts say the national average cost to unclog a toilet is $200 to $700, with most people spending about $350 when a plumber uses an electric auger to clear the toilet drain clog and test the system.

Of course, you could get lucky and pay less if a simple drain snaking or professional chemical treatment is all that needs to be done.

However, you won't need to call a plumber if you follow the advice of water treatment centers, who say there are 17 items you should never flush down the toilet because they can also get caught in machinery in the wastewater treatment plant, which can be an expensive problem for every city in Minnesota and Wisconsin.

Some of these may seem obvious, but there are people still trying to flush them down. Let's not have it be us.

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17 Things You Must Never Flush Down Your Toilet In Minnesota Or Wisconsin

Having to call someone for home repairs is never fun and the costs that are associated with those calls always seem more than we expect and they come at the worst times.

A common call people make is to plumbers, and many of those issues happen in the bathroom. If you have kids, who may not know exactly what goes in the toilet, there's a good chance they've flushed something down that caused problems your plunger couldn't fix.

However, you don't need kids to have those issues because everyone can get confused about what can safely be flushed down the toilet. A key thing to remember is that toilet paper breaks down in water and rarely causes a blockage, but anything else could lead to you calling a plumber for help.

Even if they don't clog your toilet, 17 specific things have a good chance of getting caught in the machinery of your city's wastewater treatment plant. Repairs are costly on this machinery so it's vital that you NOT flush the following items to protect your plumbing and to help save your city's time and resources.

Gallery Credit: David Drew

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