Alright, I know this question has been asked hundreds of times on this site. And all of the guidance is to screw the $100s of water and just do it right...
I have a Intex Rectangle 118" x 78.75" x 29.5" (9.8' x 6.5' x 2.4', or 2m x 3m). It holds just over 1,100 gallons of water.
My pool is...