Hello. We are finalizing our pool specs before hopefully signing a contract in the next week or so. I've read here that the SWG should be 2X the pool volume but need some additional guidance. Our pool will be 39K gallons (20 x 40, 4'-9' deep) and our PB is recommending Jandy Aquapure 1400 which is rated to 40K gallons and he says it will be fine. I was hoping to just tell him to replace it with a certain model that can handle 2x the capacity of our pool, but I can't find one, definitely not Jandy. I did find a Pentair rated to 60K gallons. Any suggestions? We are planning on automation (currently Jandy) and understand that it needs to be the same mfr. as the equipment in order to work properly. We're open to changing to whatever makes sense but our PB really has a preference for Jandy. Thank you!