Quote Originally Posted by stinkyattic
Although I've heard of this, the idea of a non-draining system worries me in that the water hanging out in the clay pellets would be a potential place for ROT, and PESTS, and if you ever had to flush the plants, it would be impossible.
I'd add a drain hole with a removeable bung so you have the option of letting stagnant water out of the bottom of your trays.
sounds like a good idea. I would do same.
... but maybe there's some explanations about drainage or water flushing problem in the book thou.?...