If you're going to do landscape irrigation, then you need to make sure you know what you're doing. These systems are complex and can prove extremely useful for you to keep your landscaping and garden watered. There's water pressure that helps the irrigation system to help make sure water is able to flow where it needs to go.
Do everything in your power to make sure your irrigation system is aligned in a way where it's able to spread water throughout your entire landscape. The water pressure will allow the system to spray water out wherever it needs to go within the context of your entire yard.
You want to put the entire irrigation system to work in your yard to make sure it is operating as designed. If that's the way that you decide to take things, then you could end up in a situation where you know it is going to work. There are a lot of things that can go wrong when you are dealing with an irrigation system that you are testing out for the first time. Make sure it is fully operational before you make a purchase that you may ultimately regret.