http://members.lycos.nl/franshop/tip24.htm

Does this mean that a Bison motor should run for 18-20V i 3 minutes in the first bucket of water, then first 1 minute in the other, then rest 1 minute, then run 1 minute again. The altasista translatie van Nederland to English is not the world best

Off to buy some distilled water.....

As this article was written for far more biger engines then the bison I reckon you need to adjust the values a bit.
First recommendation:
2 minutes on 3 volts frontwards and backwards
1 minute in a new clean cup frontwards and backwards.

I already blew one engine away for Moers. Had to use Tamar's group c engine

Experience will tell in the end