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Outside air source
>> Likewise, it's a good idea to place the blower's intake outside the
enclosure as well, preferably from outside. This is also a
health issue: if the blower is drawing its air from inside your shop
(where others are painting and using solvents) your blower is taking these
toxic fumes, burning them into even more toxic stuff, and delivering it
right to your face!
I'm particularly sensitive to this, because I worked in a shop several
years ago where I was getting SICK after extended periods of glasswork.
To make a long story short, we isolated the problem to what I just
described. <<
This is correct. I still need to put both my air intake outside and my
emergency vent for the gas pressure regulator to the outside as well. I also
have a problem particularly since I have a slop sink just outside the door
where my combustion supply pumps are located. All it takes is for someone to
clean out a brush with any solvent and I stop bending. Besides smelling nasty
the by-products of the fumes burning are definitely a source of nasties.
I also get sick right away. One of those projects for the winter. The
emergency vent I am referring to is in case the diaphragm breaks or the seal
goes ( rare but possible ). This way the gas would vent to the outside rather
than building to explosive levels inside that closed space. Tom turns on pump
motors and room go BOOM! I used to have a valve that was electrically
activated to shut off the gas when I turned off the pumps. I took it out
because it was a diaphramatic type valve and it dropped that lousy 1/4 lb. even
more. I still have a main valve but it is downstream of the booster.
E-mail from: Tom Biebel, 09-Sep-1995