[George Fergusson]

Bwrangler has about as good a section on crack pipes as you're going to find:

http://bwrangler.litarium.com/oxalic-acid-vaporizer/

George-

 

[IBEEME]

Thanks George, his site has lots of info, but this is one of the first statements "I've eliminated all information concerning the do it yourself oxalic evaporator."
So I'm still in the same place needing an emergency crack pipe but can no longer find the information I need.

 

[BerkeyDavid]

ibeeme - if you search the forum back a couple of years I am sure you will find what you need. There were some detailed discussions and descriptions back then. basically it is copper pipe and a propane torch.

 

[BerkeyDavid]

p.s. I am not aware of any requirement that the JB be used above freezing. If you can scrape up the dough that is the best way to go.

 

[Michael Bush]

You see the pipe on his site. Basically you just put the oxalic in it and heat it. Try a search on oxalic acid and you'll find many discussions on the subject.

Just a few of the results from a search on Disease and Pests for Oxalic Acid

http://www.beesource.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000600#000000
http://www.beesource.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000303
http://www.beesource.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000284#000000
http://www.beesource.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000510#000007
http://www.beesource.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000486#000007
http://www.beesource.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000386#000011
http://www.beesource.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000382#000000
http://www.beesource.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000332#000000
http://www.beesource.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000280#000005
http://www.beesource.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000126#000001
http://www.beesource.com/ubb/Forum3/HTML/000280.html http://www.beesource.com/ubb/Forum3/HTML/000126.html http://www.beesource.com/ubb/Forum2/HTML/000468-2.html http://www.beesource.com/ubb/Forum2/HTML/000468.html http://www.beesource.com/ubb/Forum1/HTML/000298.html http://www.beesource.com/ubb/Forum2/HTML/000469.html http://www.beesource.com/ubb/Forum2/HTML/000468-3.html http://www.beesource.com/ubb/Forum11/HTML/000058.html http://www.beesource.com/ubb/Forum2/HTML/000449.html http://www.beesource.com/ubb/Forum11/HTML/000103.html http://www.beesource.com/ubb/Forum1/HTML/000293.html
http://www.beesource.com/ubb/Forum2/HTML/000468-2.html http://www.beesource.com/ubb/Forum2/HTML/000468.html http://www.beesource.com/ubb/Forum1/HTML/000298.html http://www.beesource.com/ubb/Forum2/HTML/000469.html http://www.beesource.com/ubb/Forum2/HTML/000468-3.html http://www.beesource.com/ubb/Forum11/HTML/000058.html http://www.beesource.com/ubb/Forum2/HTML/000449.html http://www.beesource.com/ubb/Forum11/HTML/000103.html http://www.beesource.com/ubb/Forum1/HTML/000293.html
http://www.beesource.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=1;t=004896#000000
http://www.beesource.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000517;p=1

 

[BWrangler]

Hi Ibeeme,

For a quick mite emergency, use the oxalic syrup instead of the evaporator. It will cost less, as you won't need to buy any extra safety equipment.

Regards
Dennis

 

[Hillside]

I built a couple of the pipes two years ago, but I found the drizzle technique is easier and faster.

With the pipes, it's hard to know when all the oxalic has evaporated.

 

[rweakley]

I have some nice pictures of the OA pipe that I built following George Ferguson's instructions. I have posted his pictures on my website.

www.geocities.com/rwjedi2002/oaevaporator

 

[George Fergusson]

I did subsequently shorten the tubing on the end to about 6" to minimize condensation of the OA vapor which tended to plug it up.