» MAKE: NOISE — Discuss this article

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• Which valve?
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  Hi Jon,
  I'm trying to make this but am struggling to find a suitable one-way valve. Are you using a 1/2in valve or something larger with an adapter? (such as this?
  
  Also it's not clear if the valve is screw-one or push-on. I could only find one push-on that looked plausible?
  
  Thanks,
  
  G

  Posted by gtoal on August 25, 2010 at 08:55:43 Pacific Time

• Which valve?
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  Hello!
  
  It was a PVC spring check valve for a 1/2" piece of PVC pipe. Found it on the shelves at Home Depot with all the other bits of PVC stuff. It is intended to be glued and it just slips on over the pipe.
  
  Something like the third item down at: http://www.plumbingsupply.com/pvccheck.html
  
  Doesn't look like Amazon has a valve for the 1/2" pipe. But they have some for 2" pipe: http://www.amazon.com/Spring-Check-Valve-Solder-Ends/dp/B000LF61DY/ref=sr_1_fkmr3_1?ie=UTF8&qid=1282759097&sr=8-1-fkmr3
  
  That would be big.
  
  Good luck!
  
  - Jon

  Posted by jthorn on August 25, 2010 at 10:59:39 Pacific Time

• Which valve?
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  The very dab! Thanks. I did check Lowes and Home Depot before posting and hadn't found anything, but I'd been searching for "one-way" valves, not check valves.
  
  Now that I know what to look for, when I tried that at Amazon I found this, which looks like just the ticket?
  
  Any recommendation on a glue that would fix PVC to wood reliably? Would a couple of small screws or bolts on either side be worth a try as backup in case the glue fails spectacularly at an awkward moment? (This is a project that if it were to go wrong, I really would not be looking forward to the cleaning up afterwards...)
  
  G
  

  Posted by gtoal on August 25, 2010 at 11:20:03 Pacific Time

• Which valve?
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  Yeah, that looks like what you want!
  
  ... wood? The check valve won't do much good unless it is on a hollow handle, i.e. a piece of PVC pipe. But most of the PVC glues stick to wood pretty well. Screws are always better than glue though.

  Posted by jthorn on August 25, 2010 at 11:23:50 Pacific Time

• Which valve?
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  Did I really write that! Gack. I suppose "brain fart" is the appropriate excuse given the subject matter :-)
  
  Ordered and on its way.
  
  And if this doesn't help, next Make project will be retrofitting an insinkerator to the outlet pipe ;-) I'm getting tired of having to plunge at least once a week!

  Posted by gtoal on August 25, 2010 at 12:14:34 Pacific Time

• Which valve?
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  Ha! I felt kind of silly writing that article because I wasn't sure if other people had as much distaste for your standard plunger as I did. If you figure out how to make the incinerator work... publish it. :)

  Posted by jthorn on August 25, 2010 at 13:29:04 Pacific Time

• Which valve?
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  Success! Great project, was easy to build once I found the parts. I did google for tips on how to apply the cement, and I would add to your description that it's worth attaching the plunger end first, so you can lean heavily on the other end to help push it all the way on, without worrying about pushing too hard on the newly cemented valve :-/
  
  By the way, 'insinkerator' is a brand of garbage disposal unit that you have in your kitchen sink - not a type of incinerator, which would be way too daring a project for a toilet add-on!
  
  Actually I looked for them after suggesting that and in fact they do exist - there's a custom unit called a 'toilet macerator' that does the same job, though I suspect a kitchen one would be cheaper!
  
  Thanks again for a cool project. Although I'm not looking forward all that much to the first live field test!
  
  regards,
  
  G

  Posted by gtoal on August 25, 2010 at 20:39:09 Pacific Time