Heh...septic systems suck. I've lived in two homes with them in my youth and 5 kids in the house. #1 back in the mid 60's used to fill up and leak through the ground. Made the grass around it nice and green though :) #2 was in a home newly built for us in 1968. A brick ranch out in then rural surroundings, no water/sewer. Never had a lick of problems with that thing. It was a huge tank and cleverly made leech bed from house block in sand and rock. I guess in that location the tank could be made from house block and act partly as a leech bed of its own. 20 years later they ran water and sewer and caved in the tank and leech bed so I know what it looked like.
Well now adays using a prebuilt from a company like Icom, a cavity duplexer and adding a Mirage repeater amp and a couple Diamond Super Stationmasters, some 9913 or hard line is the way to go. Back in the early 90s it was piece together a controller, mobile or bass rig, an AT computer to handle the phone patch etc.... I know of one such beast still in existence that I had a part in its equipping and that I had modified a couple Motorola 160mhz "Pageboy" pagers for use on the repeater. It's used every day all day long and part of the SKYWARN 2 meter network. I can hit it with a 5 watt HT 50+ miles away albeit strategically located.