Heat water and lime precipitates in my neck of the woods.
Which reminds me of some college friends way back when who had a big trash can for recycling their beer bottles. Since it was filling up too fast, they decided to smash the bottles in small pieces so they wouldn't have to empty it so often. Any idea what 40 gallons of crushed glass weighs? Unfortunately, they couldn't get a forklift into their kitchen, so they had to scoop out the glass. Fortunately there were no fatal injuries.