Replacing drain, J-trap, etc. I need advice.


  #1  
Old 07-26-19, 09:35 AM
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Replacing drain, J-trap, etc. I need advice.

I am preparing to replace the drain and piping in this old house but I can't figure out how to unscrew the old piping. Take a look, please.

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Last edited by PJmax; 07-26-19 at 01:35 PM. Reason: resized pictures/labeled one
  #2  
Old 07-26-19, 09:52 AM
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That connection (all the ABS connections) are cemented on.

Your best bet us to cut the pipe about 1.5" from the elbow and add a trap adapter fitting on the end. The trap adapter will then allow you to replace the P-trap with a slip-fitting trap, which are usually easier to install than cemented fittings.

 
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Old 07-26-19, 09:57 AM
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Cemented???? I had no idea. I had purchased a snappy trap piping kit from eBay. I wonder if there's a way to still put it to use.

 

Last edited by Shawn R; 07-26-19 at 10:15 AM.
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Old 07-26-19, 01:37 PM
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That "kit" comes with a rubber fitting. Cut the old drain line where I put the red line.
That rubber fitting should slide on to the existing pipe.
 
  #5  
Old 07-26-19, 03:17 PM
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You read my mind, lol. That's the exact spot I was looking at earlier. It should go on there snug and shouldn't leak after tightening up the clamps. Thanks for the confirmation!
 
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Old 07-26-19, 03:47 PM
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Another glued trap! What am I missing?
 
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Old 08-04-19, 11:49 AM
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I cut the pipe, put in the new drain along with the snappy trap pipes, and ended up using the long wall tube instead of the pipe with rubber fittings. There was simply not enough room to use the pipe with rubber fittings even though I cut it to the bare minimum length. I stuck the long wall tube inside of the cut piping and patched it up with plumber's putty for the time being until I can seal it up with the proper sealant.
 
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Old 08-05-19, 01:07 PM
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I think I might just leave the plumber's putty on there because it's completely stopping the slow leaks. As far as I'm concerned I'm done with the piping installation. Now I need to do some serious cleaning down there because this is a really old house. But I'm glad I got the biggest problem out of the way first. I've got the jack stand holding up the pipe that goes into the floor because it won't stay up and it's kind of heavy. Without the stand, the weight could pull the new piping downward and screw up everything.

I need to find something that's about 10 inches in height and that doesn't take up much space to support that piping.


 
  #9  
Old 08-06-19, 09:49 AM
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Glad that its' working. Plumbers putty isn't really supposed to be used like that, if you wanted to do it right, you'd need a few more fittings to correctly attach to the sink and to the drain.

Happy to help you figure it all out if you want.
 
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Old 08-06-19, 10:06 AM
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Nah. I think I'm good for now. Appreciate the help though.
 
  #11  
Old 08-06-19, 01:36 PM
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You will be revisiting that set up in the (near) future. Take Zorfdt up on his offer. Probably cost you less than $20 for a permanent fix (and no "support piping").
 
  #12  
Old 08-07-19, 12:50 PM
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Yeah. Ok. You guys know more than I do so I'll take Zorfdt up on his offer. What should I do?
 
  #13  
Old 08-08-19, 04:44 PM
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OK, I'll start off....I like starting from scratch so I know everything'll work. So I'd replace that waste vent with a new AAV. I'd also move the trap up so it's not so close to the floor. This would reduce what looks like a 2 foot drop from the sink into the trap. To do this I'd cut just below the black ABS "T" and remove everything you have there up to the sink.

Install a fernco adapter

https://www.homedepot.com/p/Fernco-P...1-22/100372290

Insert some 2" PVC piping, up to a new sanitary T

https://www.homedepot.com/p/NIBCO-2-...2112/100345173

run that up into a new AAV (your choice)

Into the new T insert a trap adapter for the pvc trap

https://www.homedepot.com/p/NIBCO-1-...D112/100347086

From there you could probably use your snappy trap. Cost about $20 + new AAV.

I'd still ask for the pro's to comment on this....just a starting point.
 
  #14  
Old 08-11-19, 05:04 PM
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Hmm. Interesting setup. I need to look into this further.
 
 

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