I'm planning an irrigation well. I need some advice. Most of the wells in my area are 6' - 30' deep. The ground is very easy to wash. I tested it out with a 10' section of 1" PVC pipe with the garden hose attached to it. It basically fell into the ground, all I had to do was guide it. How do I know when it's deep enough, or if i've reached water? What type of pump? What size and type pipe? What kind of well point should I get?