It's my fault for not being more clear. I should have said that the underground hose acts as a sort of "water pipe" or "conduit" so you can attach another hose or sprinklers or whatever you like at either end. The one running to my garden only comes out of the ground about 3-4 feet. I always attach another hose to it, and just go from there. It's one of those things where, once you do it, you'll wonder why you did not do it before.
