White & Green Buildup on Plumbing Valves Explained(plumbing101.i234.me) — You remodeled your home and added a hot water recirculation system to get faster hot water at the kitchen and master bathroom. But now, a few years later, you notice white and green buildup on the shut-off valves and the recirculation pump. What’s going on, and… Continue reading White & Green Buildup on Plumbing Valves Explained