596....thank you for replying.
This is a one story house and the drain in the laundry room, where the water heater pipe feeds into, is the lowest point in the house. At least, that's what I've been told. And that is where the backup comes from, that drain.
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What is the situation on the home that a backwater valve is necessary?
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I take it from your question that this is something that isn't always necessary? I thought that this prevented the city sewage from backing up into the house, if there is a city drain problem? Anyway, I guess I don't know the answer to your question, except to say that I'm the first house on the street, if that makes a difference.
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Very suspicious that the builder found pipes with back-slope. Calls the entire installation into question.
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I agree. Which is why I'm demanding that every inch of my plumbing be investigated.
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Toilet paper matters, but only to the toilet. Once it gets into the line, it should not be a problem.
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Finally!! Something that makes sense with regard to the toilet paper. Thank you!
Do you have any ideas as to what the problem could be? Could it be a vent problem, or does it sound like it's something having to do with main line?