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Old 11-04-2010, 09:29 AM
NC Fabricator25 NC Fabricator25 is offline
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Default Method to Filter Dirty Diesel Fuel?

Not sure which forum this belongs in, please move if needed. I'm looking for a cheap and easy way to filter about 10 gallons of diesel fuel to use in my hot water pressure washer (see other thread with my fixed Hotsy PW!!).

About a year ago the skidsteer fuel tank sprung a leak near the bottom of the plastic tank and I caught the diesel over a 2 day period using my oil change pan and then I stored it in a variety of containers, mostly 1 gallon oil jugs and such. I figure that between the fuel running down the skidsteer chassis, into my somewhat clean oil pan, and then being stored in these containers there may be some crud in it.......I don't think there's any water, but not sure how to decisively tell. Can I run this through some kind of filter or strainer to get any crud out?

How clean does it need to be to burn in the burner of the PW? Am I over thinking this? Or should I just scrap it, and start fresh? I'd like to make use of this $30 worth of fuel if I can.

Thanks, David
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Old 11-04-2010, 09:49 AM
Pressco Pressco is offline
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I have heard of people setting up at-home filtering systems for when they covert to french-fry mobiles. Involves something like 5 55 gallon drums, where you filter the dirty diesel to the next barrel and the next barrel and the next with a pump, and each time using a smaller filter until you are at some obscene micron filter.

I'm not much help, but you might Google that. Really, you might just want to cut your $30 loss...
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Old 11-04-2010, 10:40 AM
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greywynd greywynd is offline
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The Hotsy would have a burner setup similar to an oil furnace. As long as there's no major amounts of dirt, it should be fine. Worst case scenario is a nozzle for the burner, which for my furnace is about $6. I often take the old fuel from filter changes, leaking/rusty truck tanks etc, let it settle in pails for a few days, then dump the majority of it in the furnace.

I'll then take those containers, dump them all into one, and again let them settle for a while, and do the same thing. The dirty part at the last gets dumped into a waste motor oil jug, and goes for proper disposal. (We have a depot here that accepts used oil and filters.)
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Old 11-04-2010, 12:44 PM
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Harvuskong Harvuskong is offline
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Some years ago, I ordered a special funnel from Eastwood.

It has a very fine mesh screen in it. 100 denier, if I remember correctly.

It is supposed to allow the fuel to go thru it and keep the water inside the funnel.
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Old 11-04-2010, 12:47 PM
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Caliber Caliber is offline
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Quote:
Originally Posted by NC Fabricator25 View Post
Can I run this through some kind of filter or strainer to get any crud out?

How clean does it need to be to burn in the burner of the PW? Am I over thinking this? Or should I just scrap it, and start fresh? I'd like to make use of this $30 worth of fuel if I can.

Thanks, David
You can strain it threw a coffee filter.
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Old 11-04-2010, 01:28 PM
kbs2244 kbs2244 is offline
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Plus one on the coffee filter idea.
The water should be pretty well separated out by now.

If you can rig up a set up so the stuff just drips into a old coffee maker filter holder you will have fuel that is plenty clean.
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Old 11-04-2010, 01:49 PM
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Shade Tree Welder Shade Tree Welder is offline
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Quote:
Originally Posted by Caliber View Post
You can strain it threw a coffee filter.
Quote:
Originally Posted by kbs2244 View Post
Plus one on the coffee filter idea.
The water should be pretty well separated out by now.

If you can rig up a set up so the stuff just drips into a old coffee maker filter holder you will have fuel that is plenty clean.
You have 10 gallons of fuel so you are only in it for $30-35 bucks.

I would rig up simple filter, a gallon milk jug or similar with the bottom cut off works well. Invert the ad hoc funnel. Take a cupful of cheese cloth, old clean rags or similar and place in the bottom of the your ad hoc funnel, then place a shop rag coffee filter, paper towel over the fluff in the bottom of the funnel and pour you old fuel through it.

The fluff on the bottom is not there to provide filtering but to support the coffee filter or rag. The larger the surface area of the filter the faster it will filter.

Basically you are setting up a Büchner funnel with out the vacuum.

http://en.wikipedia.org/wiki/B%C3%BCchner_funnel

One of these day I am going to rig up a Büchner in the shop, but first I will need a good vacuum pump...

Soooo many projects; so little time, money, space, sanity....
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Old 11-04-2010, 01:57 PM
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RED caddy RED caddy is offline
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+2 on the coffee filter.

I pour it thru a paint strainer/filter cone first, to catch all the big chunks, then a big coffee filter in a funnell. I save all the diesel, from filter changes and such, and burn it in my torpedo heater during what we get, that passes for winter here. (I never use the bottom inch or so, with most of the water and dirt that settles out, I dump that in the plastic drain oil drum for the recycler.)

A couple of years back we had a discussion about using diesel in kerosien heaters. Diesel works fine in mine, although, it's a little smelly if I burn the strained diesel/ ATF/2 stroke gas mix when I'm done with it in the parts washer, and the spark plug needs cleaned more often...

RED
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Old 11-04-2010, 02:52 PM
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Quote:
Originally Posted by RED caddy View Post
A couple of years back we had a discussion about using diesel in kerosene
heaters. Diesel works fine in mine, although, it's a little smelly if I burn the
strained diesel/ ATF/2 stroke gas mix when I'm done with it in the parts
washer, and the spark plug needs cleaned more often...


RED
My old Kerosene torpedo heater died a few years back and I purchase a
multi fuel version. Basically the multi fuel version used higher pressure
and a different nozzle to atomize the heavier fuels better. I ran diesel
in my old one, I would clog nozzles faster with diesel than with kerosene.
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Old 11-04-2010, 04:24 PM
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Sberry Sberry is offline
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My washer burner had some proprietary filter on it, changed it out to a common 1A furnace fuel filter, much better.
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