I need an expert opinion on laying my pipe properly to help alleviate friction loss. I will only be installing two zones for the time in the front yard (one for grass, the other for plants/shrubs). The problem that I have is that my valvebox and pump are on the left, front side of the house more towards the back of the yard. I have a few obstacles in my way (i'll be using pvc as poly-pipe isn't an optin right now). I have a rock garden a little to the left of the valve box and an electric conduit going to the side of the valvebox for the valve wires. So, basically it's a tight squeeze. Off the top of my head, i'm thinking of doing a rectangular type square around the perimeter of the yard with the pvc for zone (spraying inwards) and something similar for the plant zone, but the pvc spraying outwards. I know this sounds confusing because it's bit hard to explain.
I've included a simple drawing of the yard and was wondering if
any of you guys could help with the pipe layout as I want to possibly get as much flow as possible to the heads. I need answers because i'm getting a trencher this weekend and need to know that i have a design down before i start digging. Looking forward to a quick, expert reply. Thanks. Here's the layout of how the yard looks: