I saw this video earlier this week: https://www.youtube.com/watch?v=rUvnGPAe2Q8 https://www.youtube.com/watch?v=rUvnGPAe2Q8 I haven't tried it in my garden but

I saw this video earlier this week: https://www.youtube.com/watch?v=rUvnGPAe2Q8 https://www.youtube.com/watch?v=rUvnGPAe2Q8 I haven't tried it in my garden but it does seem to have downsides as a system. I'm not all that excited to try it.