Mineral Buildup, Low Water Pressure, and a Main Shutoff Valve That Won't Turn Completely: What Every Homeowner Needs to Know

https://www.emergbook.win/why-did-my-water-bill-jump-what-regional-sediment-buildup-reveals-and-how-to-catch-it-early

5 Critical Questions Homeowners Ask About Mineral Buildup and a Stuck Main Shutoff Valve That moment when you try to shut off the main water valve and it only turns halfway - the house is suddenly vulnerable