I have a large well for my water (machine bored - wells here have terrible recovery), when the pump went out a few years back I looked down the hole and decided no way will I climb down there. I bought a pump and used hoses and extension cords to lower it into the well from above, then a week latter hired someone to come out and do the proper install. They had the proper safety gear so they couldn't fall down the hole. More importantly they knew how to use the - I know where to buy the gear, but that is one case where improper usage will kill you before you find out you were wrong.