Spiral Siphon for Easy Start and Stop: No Need for the Trouble with a Bell Siphon inside the Grow Bed

Since a lot of people are complaining with bell siphons, I did not bother with building one for my grow bed inside a 6×8 feet greenhouse. I chose to build a simple spiral siphon, easy to start and easy to break. Here is the video (if you live inside China and can understand Chinese, click […]