You don't really need a guide to use the DC Mini. You can get the Info you need on the net.

The Preinfusion isn't really preinfusion but rather pre wetting. A very Odd and useless invention that most vibration pump machines have. If I where you I would forget about it, because the impact it has on the end result are close to none.

Preinfusion are only useful on machines with a Main water connection.

So don't waste your time on it. Instead use the time you have on dosing and distributing. It's a little bit different compared to the Classic 58mm filter basket.