When I uncovered my pool in 2016, this is what drove me to TFP. Everyone said now way, I had to drain. I spent a gaziliion hours here, totally did not want to drain, doggedly followed TFP plan, ( except for the chlorox I used, I swear I never saw the no chlorox thing until this year) I must of put in about 40 bottles of chlorox overall and thought my arms would fall off from all the brushing!
I think it took a week to get this:
I think it took a week to get this: