Im on my 3rd brew and i have bad habit of not topping off enough water to compensate for hydrometer testing. On this batch i made sure to add a little extra water. It is a wheat from AHB and it is fermenting like crazy, and as of a few minutes ago, the krausen was up in the neck of the carboy. I have the rubber carboy cap and have the airlock installed in that. I've read about airlocks clogging up, and i dont want that to happen while im at work tomorrow, so i installed another airlock in the second bung as a failsafe. Bad idea or ingenius?