08-04-2006, 05:47 AM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 5,307
Thanks: 0
Thanked 148 Times in 143 Posts
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sounds to me there is a blockage in the stack of the toilet waste line. usually but not all the time the toilet drains into a T-Y fitting which goes up the wall to the roof stack - same size as the outlet - most times the washer or sink outlet goes into a side inlet on the toilet drain - 2" diameter pipe - within six feet of the waste pipe. longer needs a separate air line piped into and above the toilet waste arm to eliminate the vacuum created when either is flushed or emptied.
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