Yea after a little research draining seems like no problem. A little condensate pump like a furnace uses would be fine. I might check into the desiccant for my car at the storage unit. Only leather left in the car is dash and rear shelf I took everything else out. I will definitely check humidity.

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Tony H
W111 280SE 3.5 Coupe
Manual transmission

Past cars:
Porsche 914 2.0
'64 Jaguar XKE Roadster
'57 Oval Window VW
'71 Toyota Hilux Pickup Truck-Dad bought new
'73 Toyota Celica GT