Originally Posted by
metric_taper
I see some sort of manifold that must collect the outputs from each pump. I assume this has a check valve for each pump, so you can't back drive a pump that is off.
What sequence method controls the various pumps? That has to be where the major cleverness is, assuming you designed that as well.
I can't think of this being pressure, that just seems to have too many switches to adjust for cutin and cutout. A demand sensor of some type?
I hope this is not some intellectual property that prevents you from sharing the operation.