Drying washed biodiesel

I'm sorry for the language in this video, but I thought it would still be better to see a video with a foreign language than not see the video at all.

Drying biodiesel is simple. All we have to do is drain the water from the bottom and lift the aquarium stone up a quarter of the hight so dry air is pumped into the biodiesel and moist air leaves the bottle.

Here in the left bottle we have the 4th wash where the biodiesel is misty from the water, and in the right bottle we have been drying biodiesel for 16 hours and ther is practically no water left in the biodiesel.