This has been the toughest opening ever, yet the water itself has been the easiest ever!
I had a lot of winter damage so I had to reset ALL the copings, and reset the liner in it. Several of the copings had been pulled completely into the pool, luckily on to the ice, so they were on top. I used a hair drier to soften the liner enough to pop it back in, but it was still hard on my hands, and one small section just doesn't want to go. Since the liner was still in the copings, I bought 8 x 3' long speed clamps at Harbor Freight. That was the only way to pull the coping sections into place. They are straighter than when the installer put them in. Also, all the original screws had rotted--galvanized. I replaced them with ceramic-coated 2" deck screws. Should last better.

Now I have to replace two, maybe 3 solar panels (mine are 2'x4' and I have 30 of them) plus some hoses.

But the water was easy! As soon as the ice melted I hook up the plumbing, SWCG manifold, pump, filter, return and low drain, and started it. I immediately dumped in 3 gallons of 12.5% LC, and then added salt and what stabilizer I had. So quickly it was producing chlorine in what is still very cold water. But it's clear and the numbers look good. Just a lot of dead stuff on the bottom. No algae.