Orbot problem - Sol pump turns on but nothing comes out?

[Derek]

update: i brought the Orbot into our living room today for a quick carpet cleaning (the Challenger is at a shop getting Powder Coated, pics coming soon) and afterward, i started on getting the Sprayborg working. after several buzzes of the fuel pump switch, a few coughs and sputters and then the solution began to flow. all is good. i shoulda realized it never froze, since no water was ever leaking from the sol pump.

tx for the assistance fellas!