Off to bed, to dream about this...
one last thought for you to get tomorrow lol
on city water with the injectors you would eliminate the need for pumps of any kind... no air stones or air pumps either
the water comes from the source and goes directly into your medium/plant ...on the way there it picks up the nutrients from the injectors directly into the pipe line or main water feed
one day when I have the money... id like to pick up another dosatron injector and run three stock tanks
this would allow me to use potassium silicate in the mix... but it cant share space in stock tank A or B so it would require its own stock tank C
then I would eliminate the use of potassium chloride and some of the potassium sulfate ultimately lowering Sulfur also