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Re: Looking for Info on Parts Cleaner

All single parts washing sinks can be replaced with three in a row, with
lids and pedals that lift the lid and turn on the pump.  This results in
less evaporation.  Parts should always be washed in Sink One, then Sink Two,
then Sink Three.  When parts do not come out of Sink Three clean enough,
empty Sink One (for recycle), put fluid in Sink Two into Sink One, put fluid
from Sink Three into Sink Two, and put clean fluid in Sink Three.  This is
basic counterflow cleaning.  If the fluid normally would last two weeks
before change, this system should produce 12 to 18 weeks, and may produce 26
or more weeks between changes.  Compared to commercial services on a two
week schedule, the system has investment cost recapture in less than 12
months, and operating cost of less than 10% of the commercial service.  Buy
good, clean solvent, recycle if you wish, send to an oil recycler or fuel
blender, or to a solvent recycler; regardless, it is more environmentally
friendly (less polluting) than a commercial sink service.  Good economics,
good environment, and, after a few days of griping, employee friendly (they

get cleaner parts to work with 90 plus percent of the time and  NEVER have
dirtier ones than before.

Ralph E. Cooper, Ph.D., J.D.
14139 Woodstream
San Antonio, TX 78231

-----Original Message-----
From: Karl DeWahl <dewah001@tc.umn.edu>
To: P2tech(response) (E-mail) <p2tech@great-lakes.net>
Date: Thursday, July 29, 1999 5:36 PM
Subject: Looking for Info on Parts Cleaner

>I am not aware that the EPA endorses any products of this type.
>Nor do I know of any web resources on the system one parts washer.
>This is what I know based on an intern project that tested it:
>The equipment is a variation on a tub-on-a-drum parts washer that has a
>solvent still built into it.
>It typically uses mineral spirits as a solvent although other solvents or
>cleaners might also work.
>If mineral spirits is used it is no friendlier in terms of worker exposure
>than a Safety Kleen parts washer
>or any similar washer, unless a soil being removed is an exposure risk.
>It is onsite, closed loop recycling, so it removes some of the
>transportation hazard compared to
>typical washers, and some exposure hazard compared to the use of an
>external still onsite.
>In practical terms, the washer worked well, and impressed the users in
>terms of ease of use
>and solvent cleanliness.  They found the solvent reservior to be small,
>such that it needed daily distillation to keep up with a heavy work load.
> The unit was also relatively costly.
>The intern host determined that a parts washer with fine filtration
>-lengthening solvent life - made more sense for them.
>-----Original Message-----
>From: Butner, Robert S [SMTP:butner@battelle.org]
>Sent: Thursday, July 29, 1999 2:02 PM
>To: P2TECH (E-mail)
>Subject: Looking for Info on Parts Cleaner
>P2TECH folks --
>As someone working primarily in R&D,  I usually find myself safely
>from the real world (and, perhaps more importantly, the real world is
>insulated from me!).
>On occasion, however,  I end up at the receiving end of actual technical
>assistance requests.
>This is, of course, a clear indicator that there are people in industry who
>are truly desperate for help!  (But you knew that already).
>As a case in point, I received the following request today:
> "I am interested in finding out some information
>about a particular parts cleaner for industry that is supposed to be more
>environmentally friendly than its competitors.  It is called System One.
>you tell me if the EPA endorses this product or if they have any
>about it?"
>In an effort to find information on this product, I've checked the usual
>suspect sites (DLA's Environmental Products Catalog
>http://www.dscr.dla.mil/products/epa/eppcat.htm, Envirosense's various
>search functions http://es.epa.gov/,  Thomas Register
>http://www.thomasregister.com/, WRRC's large document collection at
>http://www.p2pays.org, etc).  Can't find the aforementioned "System One".
>Hence this request.
>Information on either the product and/or on specific search strategies for
>alternative cleaning technologies & products would be welcome.
>At one time I was familiar with a lot of what's online,  but with new
>resources becoming available daily, it never hurts to ask.
>Thanks in advance,
>Scott Butner (butner@battelle.org)
>Senior Research Scientist, Environmental Technology Division
>Pacific Northwest National Laboratory
>4500 Sandpoint Way, Seattle WA   98105
>(206)-528-3290 voice/(206)-528-3552 fax

Juna Z. Snow
List Manager
Waste Management & Research Center