|
I manage a team of CCTV sewer inspectors, I know all too well about grease in the pipes.
Most restaurants will let you take all the grease you want, for free. You basically have a limitless supply.
On top of the grease you need a few basic chemicals like Lye, Methanol (regular stove fluid) and some way to test for pH.
It takes a bit of tinkering, but the standard rate for biodiesel using free, waste oil is 60 cents US per gallon.
|