I don't recall, it seemed a rather small area. Yes, soil does affect rates. I can't imagine anything sealing your sandpit pond, except clay....can you?
No, but I can keep hoping!!!!
Back when I refurbished the pond, I asked around to get an idea of what it'd cost to line it 24" thick with clay. With the price of diesel just north of $4/gallon, including machine time at two sites (no clay available within about 8 miles), trucking, pumping water out, etc., etc. it would have run close to $30K to have it brought in, placed and compacted.
