A new doughboy vinyl will be installed tomorrow. (we installed a new liner about a year ago but didn't get a doughboy liner and we're already replacing it). I ordered a new test kit today. I am asking the installer to change the sand in my sand filter because we had an algae problem that I was never really able to get rid of, another reason for a new liner.
I want to get it right this time right out of the shoot, any guidance or suggestions for best steps to proceed will be appreciated.