You receive 4 bottles. Number 1, 2 , 3a, 3b.
Grab yourself 4 buckets or four containers that will hold 10 liters or more.
Fill each container with about 8-9 liters of RO water.
Elements 2, 3a, 3b are all liquid and can be poured straight in to form a solution of 10 liters total (1 Liter + 9 Liters of RO). Your done.
Element 1 is dry powder and needs to be mixed slowly, and preferably into heated RO water. Once added to the water, top off until you hit 10 Liters of solution. Done.
Now setup your dosing pump to pull equal amounts from each of the 4 containers. You need to dose the same of each element daily (with the possible exception of Element 2 which is calcium - if you find your calcium levels get too high).
Hope this helps!