URUP, I did the same thing with a submersible pump 3 years ago, the nice thing is you can experiment with spray patterns drilling your own caps.
Many fountain pumps come with different spray heads, I like the Bell shaped fountain spray pattern in my mini pond.

http://shop.ebay.com/i.html?_nkw=fountain+nozzles+&_fscr=1&_ipg=&_trksid=p3286.c0.m19

Last edited by adirondack pond; 11/12/10 08:46 AM.