coolant leak

Sorry the coolant pipe is located on top right at the elbow hoses going into the heater core. You will see it when you trace the hose coming from the bottom of your recovery tank. I think that's where you will find your problem. If that's it you are going to be pissed to find out that you had a simple problem that you could have fixed all alone. It's a sneaky leak hard to find at first. If that's not the problem I don't know where else to tell you where to look.