Crazy day! Got the pond prepped for the liner and the liner installed! All while working and dealing with a furnace issue.
Took a lot longer than I thought to prep. Cleaned up all the edges that had started to erode and tried to make them at least slant away slightly. Tamped the sidewalls as
@GBBUDD suggested and used a board and hammer for stubborn rocks. I have come to the conclusion I must have some of the worst pond building soil with 1000s of tiny shale knives sticking out of it. I added a good layer of sand to the horizontal surfaces and that made a big difference. Using the sand I attempted to grade so the water would flow to the bottom of the deep section, in case i ever need to drain it completely.
It was a windy day here and even though the 8oz underlayment is thick and heavy it was still getting blown around. I was able to get it installed and even used a leaf blower and shop vac to get sand and stone it had picked up off it.
The liner was another story. A 30' x 40' EPDM liner is heavy! I realized pretty quick 3 people was really not enough, 4 people would have made it much easier! So, placed the folded up liner on a board and two of us picked it up while the 3rd wheel made sure it didnt fall off. Got it to the pond edge and rolled it in. Spread it out, weighed it down and viola, liner is installed!
Tomorrow I am going to fill it up to make sure it doesnt need any adjustment before i start adding rock. Good news is there looks to be plenty of room on the bog side and I can probably make it bigger than the original plan.
No time to even take pics today but I will post an update tomorrow with pictures.