Pete C. wrote:
Ignoramus27349 wrote:
Here's something interesting.

I have a Graymills 800-A parts washer.

http://goo.gl/a7k4g

It is supposed to be used with a petroleum based solvent. I would,
naturally, prefer to use a water base solvent.

If I can use water instead of Petroleum, I can save a huge amount of
money, EPA hassles, disposal fees, actual headaches from fumes,
etc. So, I am very interested in finding a solution!

I called Graymills company today and asked them, what would happen if
I put water with Simple Green in this parts cleaner.

The guy said, it will work just fine, it will clean, and the pump will
pump, but it will start rusting.

So, now I am thinking about preventing rust.

1) Can I add some kind of rust inhibitor to the water/Simple green
solution?

2) Can I, perhaps, fashion some zinc anode or something, like they do
on outboard motors for boats?

Any other ideas?

thanks!

i

Zep makes an anti-rust product #1049. I use it in the water table for my
CNC plasma cutting. 8oz per gal of water, or 1 gal per 500gal tank
capacity per the label. It comes in 5gal and 55gal sizes only BTW. I
don't know about it's compatibility with cleaners.

I run Simple Green in my parts washers. Do they rust? Yep, they are made
of steel!. Does the Simple green seem to hasten the rust. Nope.
If you have a good coat of paint inside it helps but the best thing I
have done so far was to drain, clean and blast the interior of the tank,
then spray it with truck bed liner. Makes it VERY tough and stops the
damage in the tank. The next item is to keep the solvent clean. I do
that with a pair of filters. First stage is a filter on the intake to
keep the big crud out of the pump. I use a custom made bracket with a
small engine air filter on it. Then the solvent goes through the pump
and out through a filter adapter that holds a Ford oil filter. (PH-8 or
similar) Then out of the filter to a bulkhead fitting and into the hose
to the brush.

--
Steve W.