...following the Tamlin's method I've noticed that after it stood in the bucket with water for a week peat separated into two layers. One - top layer - floats in the top of the bucket and the other - bottom layer - lies on the bottom of the bucket. This bottom layer also looks darker.
My question: when collecting the moss from the bucket for the second washing should I only collect the top peat layer and dump the bottom?
Darker peat = peat from the older deposits that potentially have more nutrients?