fozzy, did you get the 1 horsepower model with 5 diffusers? what price range did you pay? how much and where did you get the artificial boulder cover/muffling device? does it cause problems since these things are air cooled and need air? does it suffocate/overheat the pump? did you run 230 volt line out to the edge of your pond or put the pump near your house, and run the hoses out? i was thinking of having an electrician run and bury me a 230 volt cable out to a post at the edge of the pond, and plug the pump in there, then spread out the 5 different diffusers. what do you think (or anyone else with experience on this matter) oh, how hard was it to sink the unweighted tubing? i can think of other things to spend the extra money on...what probably an extra few hundred dollars for the weighted tubing per thousand feet (the amount that comes with the kit) someone suggested finding old bricks from a house and running the hose thru them, i thought that was a pretty good idea. how did you attach the rebar? sorry so many questions thanks. mark