Symtom |
Indication |
| White Scale Buildup | Hard Mineral |
| Red/Brown Staining | Iron |
| Bubbles in the Water/Flammable | Methane |
| Grey Buildup | Silt |
| Egg Odor | Hydrogen Sulfide Gas |
| Color in Water | Tannin/Organics |
| Popping in Hot Water Heater | Hard mineral |
| Slimy or Gelatinous Coating | Bacteria |
| Swampy Odor | Organics or Bacteria |