• BlackLaZoR@fedia.io
      link
      fedilink
      arrow-up
      6
      ·
      18 小时前

      Same where I live - gas boiler in my parents house is programmed to heat water to 90C once a week. That solves the problem

        • gmtom@lemmy.world
          link
          fedilink
          arrow-up
          2
          ·
          7 小时前

          Except it comes from an actual concern from before boilers were sealed off, it was entirely possible to things like rats to get inside them and die, contaminating the water.