Toilet flush

Old 12-30-22, 05:50 AM
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Toilet flush

Hello ,
i have a 2 story house , with 2 restroom ,
and whea i flush the toilet at the 2 floor come out bubbles from that one in the first floor.

Anyone know why?
And how i can fix it?

Thanks a lot
Old 12-30-22, 09:21 AM
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That usually indicates a partial clog somewhere in the main stack. You'd want to auger both toilets to see if you can clear it.
Old 01-01-23, 04:03 PM
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I'd also suggest checking the vent, it might be clogged as well.

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