How to Tell If Mineral Buildup Is Really Behind Low Faucet Flow — and What to Do About It

https://astro-wiki.win/index.php/How_a_200-Unit_Co-op_Stopped_Regulators_from_Failing_%E2%80%94_and_What_Changed_by_November_24,_2025

Short version: don't assume that a slow faucet equals hard water. Test smart, not loud