septic smell


  #1  
Old 07-21-05, 06:42 AM
whitelight
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Angry septic smell

anyone out there know if septic smell can come through abs pipe??

my bathroom vanity is about 16' away from my septic tank on a straight run. that is to say the branch for my vanity is off the main 3" line that runs straight into the tank 16' away and the smell is unbarable the 1 1/2" line even has a y before the trap that goes directly to the attic and into the 3" stack.

can't figure out why the smell is backing up!!!!!!!!!!

thanks
 
  #2  
Old 07-21-05, 07:50 AM
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The smell would not come "through" the pipe material itself. I would check the vent line for a clog. If the vent is clogged, it will pull the water out of any traps (toilet, tub, sink) to get air for proper drainage. This will allow sewer gas back into the home. Good luck.
 
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Old 07-21-05, 04:49 PM
whitelight
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Angry

thanks for the advice. the vents are clear. Is there a minimum height the 3" stack should protrude from the roof?? (maybe its causing a back pressure, grasping at straws here) or maybe there wasn't enough abs cement used on the joints and there not completely sealed? if thats even a possibility?
 
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Old 07-21-05, 05:17 PM
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Most vents only extend 12 to 16" from the roof. Even if there was wind coming down the vent stack it still needs a hole to enter the house. Possible (but not probable) that the smell is coming from a joint in the pipe lacking glue. May be a cracked or broken pipe. Good luck.
 
  #5  
Old 07-23-05, 06:05 PM
whitelight
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Unhappy

well I cut the pipe as it comes up out of the floor and pluged it with a rag, no noticable smell so I took it that there must have been a crack somewere in the pipes.

Replaced pipes with new ones, an hour later the smell is back!! Can't figure it out I used tons of glue on every joint and it still hasn't worked, if the smell can't come through ABS I don't know whats going on!!!!!!!

One quick question the vanity is about 6' to 8' from main stack do I really need a vent on that fixture anyway??
 
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Old 07-23-05, 06:11 PM
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If you do not vent the vanity, when another fixture,( probably the toilet), is used it will pull the water out of the trap and more sewer gas will enter the house. Are there any other drains (such as floor drains) that may have dried out and are letting sewer gas in?
 
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Old 07-24-05, 04:04 AM
whitelight
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no, no other drains of any kind.
 
  #8  
Old 07-24-05, 06:21 AM
whitelight
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Red face

Hey I think I finally found the problem!!!

where the vent pipe travelled between the cabinet there was a coupling on the back side and the pipe and the pipe itself was not in all the way but was hid by the cabinet and coupling.

thanks for all your help hopfully problem solved
 
  #9  
Old 07-24-05, 05:45 PM
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I hope so too. You need a rest and some fresh air. Good luck.
 
 

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