Knapsack sprayer step by step installation เครื่องพ่นนำ้หมักจุลินทรีย์ผลไม้

I got it from here https://shope.ee/3pwVDMPRK5 I bought this online and I could not understand the manual with unclear pictures that came with it. I figured out how to fixed it with some help from watching a few YouTube videos and decided to make this video to help those who had the same trouble installing similar knapsack. By the way, I use this knapsack for EM, & not for any kind of pesticides. #knapsack #sprayer #unboxing #การประกอบเครื่องพ่น