Be careful with those towels.Here is my friend's incubator:
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I'm not sure how you would remove water but I would just not add any more until it gets down to about 35%.
Then just keep an eye on it.
Wait.
I guess you could soak up some water with a paper towel.
I wouldn't worry about it too much but just don't add any more water to bring it back up to 50%.
The incubator turned off twice today. Once it went down to 34.5 the other time all the way down to 31. Turned out it was because the power strip switch was toggling. Well that won't happen anymore. Hope the eggs are okay!