Did you forget that he is growing in soil?
All I do is mix the molasses in with my nutrients in a 5 gallon bucket takes me no more than 3 mins to do, no need for pumps and air stones, unless of course you using hydro, which Drella is not.
That's because you're not doing it completely correctly, its kind of lazy.
... a reservoir is not only for hydro.
I used a res in soil, it just doesn't recirculate, its called drain to waste,
and it is much better than doing your 5 gallin bucket with a mixing stick
method.. Aerating the water and mixing the nutes whether you are in
hydro or soil is extremely important if you plan on giviing the plants equal
amounts of fertilizer. All heavier ingredients sink to the bottom, and then you
probably just pour the water on to the soil surface with some type of cup
or watering pail, still with no circulation or aeration, Pumps, circulator's,
airstones, hoses and showerheads are the best thing for watering your garden
not only do the nutrients mix and aerate in the reservoir before application,
the showerhead aerates the water even further when it is sprayed on to the
surface rather than poured...... There is so much air in my mix the water never
settles on the surface of my media, it bubbles and dissipates beneath the surface..
Roots love air, the more air in your water and nutes you give them the more efficient
your plant will use them, how can you argue with that.