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Signs Your Sewer Line May Be Blocked

A blocked main sewer line affects the whole house. Recognising the early signs gives you time to act before sewage backs up into the basement.

Warning signs

  • Several drains slow at the same time
  • Toilets gurgle when sinks or the washer drain
  • Water appears in the basement floor drain
  • Sewage smell indoors or outdoors
  • Water backing up into the tub when you flush

What to do

  1. Reduce water use immediately.
  2. Locate your main cleanout if you have one.
  3. Request a main line cleaning.
  4. Ask for a camera inspection if it happens again.

Questions to ask the plumber

  • What caused the blockage?
  • Is the pipe damaged?
  • Is the problem on my side of the property line?
  • Would a backwater valve help?

Related plumbing services

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