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Discussion Starter · #1 ·
That's down to 1 micron too. I'm way impressed how easy my home filtering set up has worked out.

I'll add, optimum filtering temps are above 70 when near 50's filtering times almost double. I started filtering in the cooler weather, which made me think I needed to heat it, until I filtered it when it was warm out. I have about (15) 60 gallon drums and (2) 275 gallon pallet cubes. I'll just filter my 8 months of cool weather supply this summer.

I get my used soy in cubes. The guy puts them into the cubes pretty warm, never any water, almost like they are pasturized. Never had rancid oil. Pour them into 60 gallon plastic drums at home. I do strain out the debris with a screen while pouring into the drums. Let set for a few months to almost a year. The oil is almost black when I get it. After settling the oil becomes golden with a few inches of muck at the bottom. The drums are in the sun. I've had some oil sit over a year and none has gone bad. I do add some diesel 911 to the final transfer tank just for good measures.

My filter set up consists of a 120v goulds shallow well pump that can hold near 60 psi, shuts off at 60psi. Filters steady at 40psi. My pick up wand is about 3 inches too short to reach the bottom muck. Pumps through two house hold water filters 5 then 1 micron. So far the last well over 100 gallons. I pump into a 100 gallon transfer tank that has a 12v (filrite clone)transfer pump with 10micron goldenrod filter, ready for fill up.

My truck has a 2 micron coolant heated fleetguard filter(big) that I can't imagine will ever clog. The way my setup in the truck works only consumed volume is passing through the filter, no looped flow.

I'm pretty sure the goulds pump is the trick due to the application it was intended for. House hold water supply pumps are pretty stout, pulling and pushing some fair head, providing high flow on demand to instant shut off, and you never have to turn it on or off, just leave it on.
I was going to attempt to build a gravity fed solar heated filter set up in the roof of a barn I'm going to build, but it is so easy right now.
 

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the only bad part of pressurising---youll push larger stuff thru then if you gravity it-----
 

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Discussion Starter · #4 ·
What micron do you go down to? Type of filter?

I'm still interested in going to a gravity/solar set up.
 

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Discussion Starter · #5 ·
[ QUOTE ]
the only bad part of pressurising---youll push larger stuff thru then if you gravity it-----

[/ QUOTE ]I've heard/read that too. I do not doubt there's truth to that but, really curious how much of what actually makes it past. These filters are designed to be pressurized in a house hold water system.

In the end I'm not too concerned, for a few reasons. One is I'm going down to 1 micron for primary filtration and I have a very good 2 micron filter on the suction side of my vehicle that shows no sign of restiction. The other is the flow rate through the 5->1 micron is so high with very little sign of clogging I can't imagine there is much actually being filtered out, I've been changing the filters only after a 150-200 gallons just to make myself feel good. Wonder if I can send a sample of my filtered oil somewhere to have it anylized for particulates/contaminates?

When I first tried to filter oil this winter(inside) I actually clogged up the filters after about 20gallons with non settled oil I just got. I'm so convinced with my experience and others that oil source and settling are the secrets to hassle free filtering.

I'm posting this experience due to some of the rather overkill/elaborate filter systems I have read about (no one inparticular). I'll bet there are some really simple gravity/solar set ups out there.
 

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My set-up works pretty good too. I filter down to 5 microns through a series of filters. 55 gallons in about 10 minutes.
 

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i pressure filter also--but i made that comment for a reason---i have gauges in between each stage-----and when the filters start to plug---------------lets just say the final 2 micron absolute on the car gets dirtier faster!!!!!!!!!!!!!
 

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Discussion Starter · #9 ·
What do you filter down too? Pressure?

I have a pressure guage before the two stages and it holds a solid 40psi with fresh filters and even after 150 gallons.
 

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the shop setup goes down to 5 micron--the one on the car is aftermarket--and is 2 mic absolute---and as the pressure in the shop setup rises--i have to change the one on the car oftener------------------------------------------meaning----larger trash is getting thru the shop setup-----because of pressure---instead of gravity------
 
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