7 March 2013, 21:45
If you are concerned about excess moisture, particularly if it is dripping onto your plants, I think it is possible to buy a spray that repels water. A bit like the stuff you spray on windscreens. It would help the moisture to just drain down to the lowest point instead of actively dripping. If your cover is domed that would also help.
The only thing necessary for the triumph of evil is for good men to do nothing.