— By Laura Mecoy Michael Achkar thought he had the perfect solution when he built a small house for his father in the backyard of his Capitola home. Then Achkar encountered one of the many challenges Californians face as the state seeks to expand housing: Connecting the separate unit to a water supply would cost more than $24,000 for fees and the installation of a new meter—requirements of his local water district, which has serious supply issues. Because of the high …