Help with plumbing on a Gerber Coburn Acuity Cyl machine.

[hexicola89]

We have three Acuity cyl machines, one for smoothing, two for polishing. I want to plumb the smoother into the mains and put a drain in the front trough, that should be easy to figure. We have a problem with the polisher though. They are run off an external polish chiller and pump, which is always on. So the cyl machines and lenses are filthy. Are those sockets at the back used to control an external pump or solenoid? they look like outlets, can't think of any other reason for them. Thanks.

[PRECISIONLAB]

The outlets are for optional lamps (light fixture)

You will need a solenoid valve to control flow @ each machine. Plug in for this can be found inside cabinet

[hexicola89]

The outlets are for optional lamps (light fixture)

You will need a solenoid valve to control flow @ each machine. Plug in for this can be found inside cabinet

Thanks, I will have a look in the morning. I'm guessing this is a "usually closed" solenoid?