CarrJETS
+1y
Edited: 2/15/2008 1:36:23 AM by CarrJETS
it looks like it cycles from one tank to the other. Look at the gauges... one is empty, one is full.
Edit. The empty tank is your dump tank for your bags and then when it becomes full it becomes your fill tank for your bags and the other tank becomes the dump tank. That's my best guess