A damaged plumbing system

When my dad obtained his house, he was happy with the size of the property and the privacy.  Surrounded by 10 acres of woods, he didn’t need to worry about neighbors or bunches of traffic.  Although he’d constantly lived within city limits and had used city water, he was certainly happy to have his own water well.  He assumed this would provide him a plentiful supply of water with no expense. Unfortunately, his well produces hard water which is always overrun with rust, lime and even calcium.  He’s tried water softeners, but his water is so badly contaminated that he simply runs out of water. The hard water causes damage, aggravation and expense. He’s discovered that no matter what the quality of water heater is that he purchases, it will never last longer than about four years.  Despite draining the water heater reliably every year and keeping up with the necessary professional repair, the abundance of minerals in the water corrodes the tank. He has the same complication with each appliance the water touches. His washing machine usually needs to be upgraded every 5 or 6  years. He’s given up trying to run his dishwasher. The dishes come out stained and spotted and he needs to wipe them. His water stains his tubs, sinks, his clothing and linens. It corrodes the pipes and drains, and is even bad for his skin, hair and teeth. The hardness of the water forces him to use excessive amounts of shampoo, detergent, and soap, which is also bad for the pipes.  It seems like he’s constantly scrubbing and paying for plumbing repairs. While my dad likes his home and its location, he’s considered selling just because of his water well.