What should I do first?
Stop using water while an active sewage backup is being assessed. That includes toilets, sinks, showers, the dishwasher and laundry. Do not run another load or flush again to see whether the problem has disappeared. Municipal backup guidance from Madison advises stopping household water use during a sewer backup.
Avoid contact with sewage. The CDC’s sewage-exposure guidance emphasizes avoiding direct contact. Keep people and pets away from the affected area, and report any unsafe access when arranging assistance. This article does not provide a sewage-cleanup procedure.
You can describe what is happening from a safe location. There is no need to collect a water sample, remove a drain cover or enter contaminated water to prepare for a call.
Does a floor-drain backup prove that my main sewer line is clogged?
No. Where wastewater appears is an observation, not a confirmed diagnosis. The EPA lists several causes of sanitary sewer overflows, including blockages, line breaks, system overload and equipment problems. That list describes possible system failures; it does not tell you which one is happening at your property.
The useful first distinction is between a problem involving your property’s drainage and one involving the serving utility. Avoid choosing a cleaning method or authorizing a repair solely from the location of the puddle.
Should I call the City or a drain cleaner?
Check the instructions from the utility serving your address. Some communities ask residents to contact Public Works first so the public main can be checked. The provider and reporting route can differ across nearby cities, villages and townships.
For example, Woodbury’s backup guidance distinguishes public-main concerns from internal plumbing and the private connection. Its observations about when water appears help describe the situation, but they should not be treated as a certain diagnosis.
If the utility has already checked the main, tell the private cleaner what it found. If your property uses septic, say so. If you do not know the system type, give the address and say you are unsure.
What information helps during the call?
Keep the description short and factual:
- Where did wastewater first appear?
- When did you notice it, and is it still rising?
- Were you using a fixture or appliance when it appeared?
- Has another drain or toilet also been affected?
- Has the utility checked anything yet?
- Has this happened before, and do you have a previous service record?
Use observations you already have. Do not run water or flush toilets to recreate the backup. “Water came up through the basement floor drain during laundry” gives a clearer starting point than “I think the whole sewer is broken.”
Need help with the private drain or sewer line?
Follow your utility’s reporting guidance, then call Clog Un-Boggler at (715) 760-5141 to discuss drain and sewer cleaning. Give your address, the affected drain and any information from the municipal check. Ask about the appropriate service and scheduling for your property.
Let us fix your pain in the drain. The name can be goofy. The next step should be clear.
For another useful question, read One slow drain or several: what should I tell the drain cleaner?.