How does a slight change in elevation affect a drip circuit?
Try to keep the supply tubing for a drip irrigation system at the high point of a slope. Any time that water has to be pushed uphill, water pressure is lost and the branch lines must be shorter to compensate. If water runs down a slope, you can extend the length of the circuit because gravity is compensating for some friction loss in the tubing. A 5 foot elevation change in a yard won’t matter much but anything more will make a difference with irrigation systems. Always use pressure-compensating drippers if you have changes in elevation on the site over 5 feet.
