The problem is, that Worm Tea is a natural product, and as such you don't know its constituents. Maybe someone here can expand on that.
Bearing in mind that many people say that orchids like phals should have very little fertiliser, I would use it at weak dilutions, and not too often.
Ray, what is the suggested application of the Garden Solution? I raise the Pleurothallid Alliance and in a furious repotting cycle. It seems like this would be an excellent starter for the new potting mix.