<a href=showthread.php?s=&postid=12792836#post12792836 target=_blank>Originally posted</a> by rdmpe
Maybe take a large cylinder like a section of 3" pvc and dump it down that then slowly lift the cylinder out? Or place it carefully with a container to minimize how much clouding you get.
Shouldn't create too much problem even if the water gets very cloudy for a day or two. Just a little storm on the reef...