Sourdough Confusion

Toast

I want to start a liquid white starter from Hamelman's "Bread," pages 358-359. He says to feed the starter twice a day.  Are the amounts given for the feedings to be repeated twice a day, or are they to be split up between the two feedings?  And is half the starter to be thrown away every time you feed it?

Toast

Yes, a portion of the starter is to be thrown out at every feeding. You can keep the other discards and make other things like pancakes and such though.