I got to thinking today about some sort of trash pump while I was bailing water out of a hole (Nailed a poly line that wasn't supposed to be there). Seems to me that you could use a trash pump and power it off a heavy duty DC motor. Build the sucker into your truck and wire it up so it runs off the battery/alternator. That part would be easy for me to rig up, but I'd love to set something up where I could roll 50' of 3/4" hose off of a reel, drop it in hole, and fire up the pump on the truck and have it keep the hole clean while I'm working. My question, is there such a beast that could pull water that far without having it primed first?