Lesson 4 — Injector/Fertigation Setup

Goal: install fertigation in a way that is safe, serviceable, and accurate.

System blocks

Water source → backflow protection → filtration → injector → distribution → zones

Safety basics

• Backflow protection (protect potable supply)
• Secure chemical storage
• Label everything
• Spill plan + rinse access

Calibration

• Calibrate injection ratio
• Verify delivered EC at the end of the line