Well almost. I realized a useful feature would be a button that, when pressed, would run each pump for 10 seconds. This would allow for cleaning with deionized or distilled water and also to check that all pumps are functioning. From the time a current is applied to the pump to the time water makes it out of the end of the ~3′ tube (1/4″ inner diameter) is about 1-2 seconds.
The complete system.
Detail of the pump-head. You can see the the screws and nuts used that perfectly hold on to the pump’s housing. Click on the photo for a bigger view.
The bottom of the pump head. To help keep the pumps running, a drain sleeve will be cut and placed over the bottom and maybe top openings of the housing to prevent sediment from potentially clogging up the pump.
The pump-head housing is a 4″ PVC pipe cut in half. This allows for easier drilling of the pump retainer screw holes and getting the tubing into place.