Nice rig. Couple of comments: 1) I'd maintain the largest lines when connecting the totes. You have garden hose. I'd prefer to use 1 1/2" - 2" PVC or flexible hose with minimal right angles. 2) I'd minimize the right angles. These create back pressure and make your pump work harder. 3) I'd add some sort of screen to the top hoses - maybe some more of the strainer bag. Don't want any critters getting in and blocking the hose. Good luck
