Hi all. Well, I finally did the first large batch yesterday. Using alecs' 'foolproof' method. I think i messed up big time. My system worked perfectly although it took nearly 2 hrs to filter the oil. My mix was 80% liquid veggie and 20% solid veggie. 80 litres in total. I heated it all up to 100oC until i could get no more water from it, (there wasnt much). I sucked it thru the filter (zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz). got the temp to 55oC then added 8 litres of methanol. 5 mins later added 80ml 98 proof sulphuric. I then mixed for 55 mins then stopped heating. This is where i messed up. Going by Alecs, I gave the mixture 1hr 40 mins before adding the first half of methoxide (4 litres). But, wait for it, that was after the initial 55 mins :( . So, the base cat was working for 2hrs 35 mins. This morning, expecting the worst I opened the drain expecting thick dark gunge, it didnt happen, I got really murky mid brown oil, there was no seperation. So, i thought what the hell, heated up the whole mix to 55oC and added the final 4 litres of methoxide. Mixed for 10 mins stopped heating and stirring. Now all i can do is wait till 9 this evening to see what ive got. My caustic seemed rather white, so i mixed the methoxide using 280gms to 8 litres meth. Apart from my stupidity, the whole system was flawless, except i drew water in from back siphoning from the bubbler to the vacuum unit. Ive since put a one way valve in the system. The water didnt reach the mix it just filled up the liquid trap some. Any suggestions? Ian
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