Burying the PVC when you have the trencher is a great idea. You could run some rope thru it at the same time to help pull the wire thru.

My pond is dug in sand. The water table varies in height, and the pond does too. My well puts out 28 gpm and I need to run it 24/7 to the pond if I want to keep the water level high after the Spring rains. It would normally drop 3'-5' over the summer, and if the farmer down the road runs his center pivot irrigation system, it would drop 2" per day if I didn't run the well.

When looking at a well pump, also look at the GPM that it can push. There are high effeciency pumps that can move double the water for the same hp.


www.hoosierpondpros.com

[Linked Image from lh6.ggpht.com]
http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).