How to fill out the Irrigation Distribution System Installation Agreement? 1. Gather legal descriptions of your property. 2.Create a polished Irrigation Installation Contract with Venngage's customizable template. Edit text, colors, fonts, and more. Easily Create an Irrigation Contract for Your Customers. Download a free irrigation contract template to establish clear service terms with your clients. For new (no pre-existing) irrigation electric service. The following documents and fees are required to initiate application for service.