-Remove existing media out of 18x65 tank -Dispose of resin media -Inspect tank -Inspect brine tank -Inspect plumbing associated with softener -Inspect control valve -Fill tank with 100lbs of gravel -Replenish with 5 cubic ft of high-quality resin -Reinstall control valve -Pressurize unit -Regenerate unit -Check for leaks -Send water to building