Hello All pool enthusiasts. I recently started a DIY Vinyl Grecian build of a 40.5 x 16.5 with 8 foot sit and step blue steps, 48" Steel wall and braces, 3'10" flat bottom pool I purchased from Royal Swimming Pools. I currently have two Pentair Intelliflo VS pumps. Pentair quad DE 80. Pentair 400 K natural gas heater. My plan is to use the Pentair load center for automation and power. All valves will be Jandy brand. My plumbing consists of two main drains, 2 wall skimmers plumbed with 2 1/2 inch schedule 40 PVC. Each having their own pipe back to the equipment pad. There will be three wall returns plumbed with 2 inch schedule 40 PVC each on their own pipe back to the pad. There will be a rather large water feature having its own VS pump as well as 3 inch suction line to a 32 inch wall-mounted suction port. The waterfall return will be plumbed with all 2-1/2 inch schedule 40 pvc. The Sit-n-step has 4 jets with 2 1/2 inch schedule 40. And providing the light at night is 2 Pentair Intellibrite 5G color LeD lights housed in stainless steel niches. Please review my plumbing diagram. Thank you to all that have made this forum possible and provided feedback so others may learn.