So you can't tell exactly where the leaking is coming from, correct?
Is the reservoir level dropping? Can it be that perhaps the reservoir is over-filled? ...or leaking from the fill cap?
I believe (but not certain at all) that your LCI system is the following:
Lippert 156844 LCI 2 Valve Pump Assembly
Take a look at the photos HERE
and you can see that the reservoir also has what might be a drain cap near the bottom in addition to the fill cap. Maybe it's leaking from the drain cap? Check to see if it's tight.
An image of if turned backward: