| · |
Micro-/Ultrafiltration - compact systems incorporating 2 -
4 stages of filtration; high performance at reasonable cost
 |
| · |
Reverse Osmosis - usually makes only sense for unacceptably
high levels of dissolved inorganic contaminants.
|
| · |
Distillation - produces pure water, takes time, space, uses
electricity, not convenient
|
| · |
UV systems - effective only for bacteriological treatment,
heats up water
|
| · |
Water softeners - Hard water contains high concentrations
of magnesium and calcium whereas the principal mineral of soft
water is sodium.
|
| · |
Pitcher filters - designed to improve taste & odour, convenient
only for limited amounts of water per day
|
| · |
Sediment and activated carbon filters - improve appearance,
taste and odour. |
