When I leave glycerine in Biodiesel for long periods (in an overhead bowser, up to 6 months) I notice the last of the glycerine to come out is really sticky nasty stuff that does not make good hand wash at all!
It is like trying to wash your hands in animal fat!
My theory is that moisture in the air and tank drops to the bottom of the tank and super saturates the glycerine where it will no longer combine with water and is sticky and nasty!!
Maybe this is the stuff tony is getting?
However I find by leaving glycerine in Biodiesel for up to 3 months makes more Biodiesel separation from the glycerine occur to a higher extent and I don't lose as much draining out with the glycerine.
I recently noticed my 1000 L Pod of waste glycerine had 800L of Glycerine and 200L ofBio deisel that wasn't in there before?????
Was this Biodiesel that separated out of the glycerine over a couple of years?