Water - the most precious resource.

I am installing low pressure drip and sprinklers to minimize waste and control the watering more precisely than I could with regular sprinklers.   I am plumbing each bed with 2 risers and will connect a manifold to each one and then run tubing to low pressure sprinklers that all spray towards the center of the bed to minimize any watering outside of the bed.   If anyone has any suggestions that will improve my watering, I would be happy to hear about it.