I don't have fast internet, but for some reason my water, which comes from my narrow (6") bore well drilled hundreds of feet down, into rock, has water that's both delicious and soft. General hardness and carbonate hardness are both quite low. People who drink the water from my well invariably remark on how tasty it is.
My septic system is a pump system because there isn't a big enough spot of level land where my house is located. The tank contents are pumped uphill to a rare level spot on my property, where, if I recall correctly, there are 3 lines that are each 75 feet long. But I'm with Legs, in that there's no assurance that I'm remembering correctly... maybe it's 3 lines that are each 25 feet long for a total of 75 feet... heck, I ain't no septic system expert.