So last weekend I did live sound for an outdoor wedding. (Yes, an outdoor wedding in October, in the Pacific Northwest. You might say it's playing with fire, but you'd be wrong -- it's too wet to make anything burn.) It poured rain.
I did the best I could to keep a cover over stuff (popup dining canopies); the equipment pretty much stayed dry. A few cable connectors got a good dousing from the rain showers. Rolling up, I wiped down the cables as well as I could.
Even taking precautions and avoiding direct rainwater intrusion, there's still the issue of cool temperatures (60 F) and high humidity (90+%).
Anyway, my question is how do you deal with situations like this? When you get everything back to the shop, do you give it special treatment to ward off corrosion? Is there something special I should be doing?