I figured out what happened, but now what?? My screen left a leak path for the media to get into my finished fuel. How would you "Filter" it out?? I thought about running it through my goldenrod, then running it through my drywash again. sound logical??

I had a similar problem from my lead tank to my lag, but I caught it early so no harm done but as a precaution we have a 5 micron filter on the lag tank so if something should happen when our eyes are not on it we won't have a mess.
But there should be no reason why you can't run it thru again. If you didn't lose much media (a cup full or two) maybe you could just run it thru a fine filter.
hope this helps

I ran it through the filter, it cleaned right up. The fuel is still darker than it was when I water washed though. Any suggestions why that is?? I'm running it through my drywash setup again right now. We'll see what it looks like when I get home.

What type resin are you using? Tell us about your drywashing columns.

Yeah I agree with Eurocab, but also color is affected by your feedstock. But another thing is when you where water washing maybe you still had moisture in your product, which can also affect color and cloudiness
But glad to hear everything worked out for ya............keep on brewing!

I have three 3.5" X 18" colums. The first two are thermax, the third is Purolite. I'm flowing about 1 gallon per hour through it. (I just let it run 24/7)
I'm using the same feedstock as before. The fuel looks great in the hose, but when it fills up in my finished drum, it is dark. In other words, I can't see through it anymore when there is lots of it, like I could when I water washed.

I also did a shake'em up test last night. The water got a little cloudy, but no soap seperated out.

C-superduty,

Just doing a quick calc on your towers if you have approx. 12" deep beds of the macroporous resin in the first two beds and about 9" deep purolite bed then the 1 gallon per hour is the right flow rate.

Do you ever leave biodiesel just sitting in it NOT flowing?

If you do this biodiesel has TOO much contact time with the resins and this is causing the fuel to be excessively dark.

We are recommending that people not let biodiesel sit in the towers - particularly while the resin is brand new and at its fullest strength. Overtime the darkening factor will diminish. But presently you will have to slowly flush out the darker fuel that has been created by longer exposure times to the resin beads.

GCG Let me know if this helps.