[AT] Amost off topic carbon monoxide and insects and bugs?

[charlie hill]

Farmer in order to kill the critters you'd have to get the CO level pretty 
high and of course that would mean the O2 level would be pretty low.  If the 
buildings are fairly tight, tight enough for you to get the CO level up high 
enough, then you don't need to worry about the measured amount of fuel in 
the tractor.  When the O2 level drops the engine will cut off on it's own. 
If the buildings aren't tight enough to do that then the CO probably won't 
do the job.  Or at least that's what I believe to be the case.  It's kind of 
like the old movies where the mine tunnel caves in.  You know the leading 
man is in trouble when the lantern flame starts to flicker and then goes 
out.

As for residual, that's not a problem.  You just need to let it air out 
really good.  It would be better if you had a "sniffer".  A device designed 
to indicate the O2, CO2 and Hydrogen sulfide level in air. We use them all 
the time when we have to go into confined  spaces (tanks, sewers, etc).  If 
you know someone who works for the sewer department in town or for an 
industrial contractor they'd probably loan you one.  When it shows an O2 
level above about 17% you're safe to re-enter.  Normal O2 level in free air 
is from 19.5 to sometimes as high as 22%.

Charlie
----- Original Message ----- 
From: "Francis Robinson" <robinson at svs.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Tuesday, December 25, 2007 3:38 PM
Subject: [AT] Amost off topic carbon monoxide and insects and bugs?


>    I know some of you are pretty knowledgeable about such things. I have a
> couple of minor problems in a couple of buildings with critters. Mostly
> excess spiders and some powder post beetles. Also one building with some
> rats. I know that many have used a vac hose hooked to an exhaust on things
> like ground hog holes for a long time. My thoughts were about closing up a
> building and running a tractor with a measured amount of fuel in it to
> fumigate the building. A mag tractor could run out of gas without then
> draining the battery. What I was wondering was if there is any residue 
> from
> the exhaust that would be any particular concern? CO is colorless, 
> tasteless
> and odorless but does it leave a residue or does anything else in the
> exhaust. Thinking mostly about something that would cause extra rusting. I
> have read that CO does have a fuel value but I have never heard of CO from
> an internal combustion engine exploding or even flaming from sparks or 
> heat.
>    As far as the spiders I never bother them outside and will go out of my
> way to not kill them but in the wood shop in particular they and I are at
> war...   :-)   I could of course "bomb" the buildings but most of those
> bombs and many sprays simply do nothing to arachnids...
>
>    Maybe with a little luck we can drag this out for a week like the
> grounds thread...   ;-)
>
>
>
> --
> "farmer"
>
> Do not follow where the path may lead.  Go, instead, where there is no 
> path
> and leave a trail.  ~Ralph Waldo Emerson
>
>
> Francis Robinson
> Central Indiana, USA
> robinson at svs.net
>
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at
>
>
> -- 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.516 / Virus Database: 269.17.8/1195 - Release Date: 
> 12/24/2007 11:19 AM
>
>