Sewage usually shows up at a drain low in the house: a shower, a tub, a floor drain or a toilet. The cause can be a clog or roots in the line from your house, or a problem in the public sewer. Either way it is contaminated water, and the cleanup is different from a clean-water leak.
Carpet, pad and the lower drywall that sewage reached usually get cut out and bagged. That area is sealed off so it can't spread, then cleaned, disinfected and dried.
Water category: Category 3 (contaminated water)
1Keep children and pets out, and stop using drains and toilets in the house.
2Leave fans and the HVAC blower off near the backup.
3Don't clean it with a household vacuum or shop vac.
4If sewage is coming out of a manhole or the street, the City of Knoxville says to report it to KUB at 865-524-2911.
5Take photos of the water and the drain it came from for your records.
What a sewer & drain backups job should include
Use this as a checklist against the written scope the company gives you. If a step is missing, ask why.
Step 1
Containment
Sheeting and negative air pressure hold the contamination in one area.
Step 2
Removal
Soft materials the sewage reached are bagged and hauled out; hard surfaces stay if they clean up.
Step 3
Clean and disinfect
What stays, from framing to floors, gets cleaned and then treated with an EPA-registered disinfectant.
Step 4
Dry
Dehumidifiers and air movers dry the structure once it's clean, with HEPA air filtration as needed.
Step 5
Write it up
The source, the affected area and moisture readings are recorded for you.
Knoxville facts for this problem
The City of Knoxville asks residents to report sewer overflows to KUB at 865-524-2911, to the TDEC Knoxville office at 865-594-6035, and to the City Water Quality Hotline at 865-215-4147 during business hours.
The City of Knoxville asks residents to report a sewer overflow to the KUB switchboard at 865-524-2911, to TDEC's Knoxville office at 865-594-6035, and to the City Water Quality Hotline at 865-215-4147 during business hours.
Sewer and drain backups are excluded from many base homeowners policies unless a water backup endorsement was added, often with its own limit. Check your declarations page for the words "water backup".
General information, not advice about your policy. Only your insurer decides coverage.
Who do I call when a Knoxville manhole is overflowing?
The City of Knoxville's sanitary sewer overflow page says to report it to the KUB switchboard at 865-524-2911, and also to the local TDEC office at 865-594-6035 and the City Water Quality Hotline at 865-215-4147 during business hours. Avoid contact with the water.
Can we stay home after sewage comes up a drain?
Usually, if the backup is confined to one area, people and pets stay away from it, and nobody uses the plumbing until it is cleared. Young children, pregnant people and anyone with a weakened immune system should avoid the area.
Is sewage-soaked carpet worth cleaning?
Carpet and pad soaked by sewage are generally removed and replaced, not cleaned, under the industry's water damage standard.
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