Toilets, Sinks, Showers, Tubs and Disposals - New toilet back up

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Windsock06
08-12-08, 02:44 PM
Thought I just had a backed up toilet. The line has been snaked to the street. Water runs free. The toilet is clear. Reintalled the toilet and all seemed to work fine. Flushed it 6 or eight times with no problem. Went back 15 minutes later, tried to flush and it backed up.

Any ideas?

Pulpo
08-12-08, 06:10 PM
I would look at the vent pipe next.
ecman51`
08-12-08, 06:12 PM
Did you go out and buy a new toilet because the old one did not flush?

aramis7350
08-26-08, 10:47 AM
I have had a problem in the past with the cast iron waste line (just below the flange) developing 'corrosion barbs' which would snag paper during the flush and cause a backup. An all water flush would be fine, but for a while there was an intermittent problem with flushing toilet paper. Been a while since I had this problem though.