I have been working my retaining wall and the project is near completion, I was wondering if I should install a simple sprinkler system within the inside the wall on the outside border. I wanted the sprinkler heads to point out towards the lawn and I figured I can keep it simple and cost low. My local lowes sells rainbird products (spray heads, impact sprinklers, etc) I am able to run PVC within the wall and bury it in the dirt and have that pipe run to a water outlet on the outside (screwed to a 2 way shut-off), that being said, my water pressure is pretty low, low enough to not be able to run 2 impluse sprinklers daisy chained together from a water hose. Would it be possible to install something like this? What about backflow or increasing pressure down this side of the pipe? Does this all make sense?