[RichNJKubota]

I set up a simple version of what you are doing. I had a spring and piped it down the hill a bit a few years ago. Just the other day I put a cap on the pipe with a garden hose fitting in it. 2 holes above the hose fitting allow anything not going into the garden hose to spill out. The hose runs about 200 ft down the hill to the 10 trees I just planted. Each tree has a garden hose T and valve on it and then the hose goes to the next tree. The end of the hose goes off into a ditch where the water would have run any way. Works great.