This video was was written and filmed in a 24 hour period (usually we work on the script at least a week before making them, so this was very last minute). The script was originally about a simple kidnapping but since it had been written in a hurry there were a few flaw in it, as the acting began the story took a slightly different turn.
We also didn't put much thought into the problems we could have with such a location, we were standing right next to a large pipe that looked (and sounded) suspiciously like a sewage pipe. Sure enough while we were filming the pipe would periodically flush.