Quote Originally Posted by MVP
Are there any drawbacks from recycling your hydro nutes to the soil plants? I hope I understand what is going on here...
I would approach this very cautiously. When the hydro nutes are 'used' (=requiring a res change or drain), the stuff the plants have been needing most is gone out of them, or greatly diminished, and the relative concentration of undesirable components is higher. Furthermore, the pH is not going to be correct for your soil plants.
I'd dump them on the compost heap to add to the overall richness of the gunk you can let rot and use on the veggie patch next year.