What you are forgetting is they are assuming you are using the product as intended. In a pot. Where the soil drys out and you then water it. And some of that water runs out the bottom of the pot. Along with nutrients. I've got a top soil tank running for almost two years. It's never been fed. Most of the time the water level is about halfway until I get around to filling it again. (The downside to that is the mineral content is increased by only adding water. Minerals don't evaporate) Plants are still overgrowing the tank. Without ferts.
Recedite, plebes! Gero rem imperialem.
Quote me as saying I was misquoted.
Once you get rid of integrity the rest is a piece of cake.
Here's to our wives and sweethearts - may they never meet.
If you agreed with me we'd both be right.