Okay folks. Last year I started a thread about my 5 years old pool that have a rusted wall. I got new wall under warranty right before winter. Pool was taken down before winter also. Installer suppose to come early spring but because of the whole COVID thing he was too scared. Anyway I found someone else and they came and re leveled everything and install new wall and pool. What concerns me is they finish late and left but before they left he told me to stop adding water overnight only during the day when it's sunny outside. I use my garden hose to fill it. Anyway there are "waves" in the liner (see attached image I found online. Same situation but my "waves" are from bottom to top) is that going to be fine ? Everything looked fine when they had the vacuum connected .