So in the 2nd edition on page 332, it shows a Bubble Spray Nozzle that Jeongki Kwon of Icheon developed, are there any videos showing how to make this? Or anywhere to buy it or the parts?
I really need to find a foaming or bubble nozzle or wand to spray out 100L of pesticide at a time over 1/8th acre. And maybe just a regular spray nozzle will work but Ias is mentioned in the book on that page, foaming is much more effective. And I need all the help I can get to fight this heavy pressure of stink bugs and more.
It's hard to find weeding nozzles on Amazon. So, I have no choice but to introduce a Korean sales site. https://smartstore.naver.com/daepoong09/products/5500329098?NaPm=ct%3Dkqirt1y0%7Cci%3D9a77c7c3681db32479b7debf4ff4ca211edc1ee4%7Ctr%3Dsls%7Csn%3D540730%7Chk%323bD79216039fead632EFD540730%7Chk%c