So I'm thinking this will be the season I make the switch to SWG. With the price of chlorine being insanely high, and I also like the ease of use "set and forget" of Swg. I've been researching makes, pros, cons. Reading in the forum about sizing the unit 1.5 to 2x the pool size. Ok, so it sounds like I would need 2 units since the largest I'm seeing is 60k gallon? I was considering two40k gallon to get me just over the 1.5x??