Part 1 was mysteriously deleted (I haven't been told why).
But here's part 3.
Roughly, part 1 starts with a 0.75L piss, part 2 with 1L, part 3 with 1.25L and part 4 with 1.5L.
I'll happily reupload part 1. But I think, because of the file size, it won't go on eroprofile.