Abstract: For system providing a storage and feed source of a particular liquid, and providing a conduit flow of one or more lines to one or more outlet valves separately controllable and operateable and concurrently controllable and operateable for simultaneous flow through any one or more combinations of the plurality of outlet valves, a computer mechanism for separately measuring and storing separately time of flow for each separate one of outlet valves and for each of diverse possible combination of concurrent operations of the outlet valves, and for the computer when activated to do so, to cause a repeat flow for any one of stored one of the outlet valves or for any stored combination thereof.

Abstract: A combination of a flow-cell with a rate of flow controllable and set to obtain and maintain a solvent or diluent predetermined low flow pressure from the flow-cell's inlet to the flow-cell's outlet, in which at-least an outlet thereof is alternately raised to a height above the inlet thereof sufficiently relative to mass of individual solute(s) and/or individual bead(s) (or other insoluble mass(es)) as to permit the mass of the individual solute(s) and/or individual bead(s) to move by gravity from a direction of the outlet end toward the inlet end of the flow-cell as part of a mechanism ascertainable of improved dissolving of solute and/or suspension of particles of insoluble matter.