I opened the pool this weekend to crystal clear water. Just a quick manual/robot clean and good to go. Water parameters spot, including chlorine due to running SWG with cover on for past several weeks.
One odd thing I saw was a noticeable fade on liner between panels that transition from bottom to vertical (see below):
This is consistent from this seam all around the pool and up walls. Any ideas of what could cause this? I plan to call GLI this week to see as I no longer have a PB (out of business).