I thought this thread might be interesting to some of you. This person has a tank with 1" thick acrylic, so he couldn't use the VorTech pumps.
Until now:
http://www.reefcentral.com/forums/showthread.php?s=&threadid=1272963&perpage=25&pagenumber=1
Until now:
http://www.reefcentral.com/forums/showthread.php?s=&threadid=1272963&perpage=25&pagenumber=1