try a gravity fed system w 3/4 inch thin wall copper tubing, direct buried at 30 inch minimum depth with a bed of 3 inch under and 3 inch over tubing soft sand (kiddie sandbox) make sure no sharp objects in sand...don't want it punctured some day. Or you could skip the thin wall and use thick wall with no sand bed but with the price of copper these days thin wall tubing/ sand bed is the cheaper solution. Besides, with a sand bed and that depth being shallow and above your frost-line, you should have no problems with heaving due to freeze/thaw cycle. Otherwise, with the thick wall pipe, the trench has to be below the frost line which is 50 inches depth in your area; more back-breaking digging or going to the rent-all place and spending $200 to rent a ditch-witch and all that jazz. If you wrap heat tape at the beginning of the water run, you won't have to worry about running electricity out in a separate trench just plug into your outdoor on the side of the house receptacle. Heck...this receptacle doesn't have to be connected to a GFCI circuit, since you could use the 50-60 foot of copper tubing as a ground! Hope this helps? All y'all take care!
