Does Hong Kong Have Hard or Soft Water?
Water Hardness in Hong Kong
Hong Kong generally has soft to moderately soft water. The water supplied by the Water Supplies Department (WSD) comes from two main sources:
Dongjiang (East River) in Mainland China – This accounts for about 70-80% of Hong Kong’s water supply.
Local Rainwater Collected in Reservoirs – The remaining 20-30%.
Since the water is mostly sourced from rain and river water, it contains low levels of dissolved minerals like calcium and magnesium, which means it is classified as soft or slightly soft.
How Does This Affect Daily Life?
Soap & Detergent Usage: Soft water creates more lather, so you may need less soap, shampoo, or detergent.
Appliances & Pipes: Unlike hard water, soft water does not cause limescale buildup in kettles, pipes, or washing machines.
Taste: Some people find soft water has a smoother taste compared to hard water.
Skin & Hair: Soft water is gentler on skin and hair, reducing dryness and irritation.
Are There Any Variations in Water Hardness?
Water hardness can vary slightly depending on location and seasonal changes, but it remains within the soft to moderately soft range across Hong Kong.
Do You Need a Water Softener?
No, since Hong Kong’s water is already soft, a water softener is unnecessary.
In summary, Hong Kong has soft water, which is beneficial for cleaning, appliances, and personal care.
