toilet flushing problem


Old 05-07-01, 05:41 AM
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I have a problem with when the upstairs toilet flushes
it draines the downstairs toilet.

The downstairs toilet is set on the upstains toilet
sewer line, so is the vent. Whenever the upstairs toilet is flushed the downstairs toilet acts up, the water is pushed into the bowl and threatens to overflow, then it is drained leaving a bad smell.

this never happened before, and both toilets have been
working for about 8 years (when the downstairs toilet
was installed) now.

Hopefully someone can tell me what the problem is, what
caused it and how to fix it.

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Old 05-07-01, 06:40 AM
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Toilet problems

Sounds to me like the downstairs toilet's trap is not working. Do you know the size of the waste line for the toilets and how they are vented. If they were fine before they still should be fine or was the downstairs toilet just added. If they have been working fine together for years you mave have some sort of clog which could cause the downstairs to overflow. If you have done it before you can snake your pipes Most likely just downstream of the downstairs toilet first and see if that solves your problem if not try cleaning the cleanout near the area of where your pipes leave the house. When you do this make sure to turn off the water to the toilets and flush them to get rid of the water. You will get some water out of the cleanout and remember this is sewer water from your pipes so it will not be sanitary.

Doug( do-it-yourselfer in all senses but I do have a state plumbing license)
Old 05-07-01, 08:06 AM
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Location: Eugene, Oregon
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Good to see another plumber on here

What State are you from?

I'm here in Eugene, Oregon

Licensed Journeyman #5347P


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