The end result of that merger would be the formation of a black hole, the creation of which would release large jets of gas, which would then have been followed by a weak supernova.
And, if you'd rather trust the final decision to the camera, a ball-in-the-hole scenario is described that'll automatically engage the shutter release when the live view matches your ideal layout.
Normally, when a well begins to flow, the release of pressure cleans up the well bore of contaminants and other debris in the hole during the first few hours it is opened up.