SA3 Swansea
Near or below the UK average. Limescale builds slowly.
At 60 ppm, Swansea ranks near the UK's softest water areas — compare it against the hardest areas.
What this means for your home
Based on 60 ppm in Swansea (soft water).
- Soap lathers easily with less product needed
- Minimal limescale buildup in appliances
- Gentle on skin and hair
- May taste slightly flat compared to harder water
Should you soften the water in Swansea?
A verdict and running-cost estimate based on SA3's 60 ppm reading, for a typical 4-person household.
Water is soft to moderate, so limescale and soap costs are low and a softener rarely pays back.
Appliance impact at 60 ppm: negligible: appliances reach full expected life. Sized for a 4-person home; regenerates roughly every 45 days (estimate). Figures are conservative estimates and vary with household size and usage.
Hardness data for SA3
Sourced from Welsh Water (Dwr Cymru)'s published water-quality reports and public records.
Hardness measurements
| Parts per million (ppm CaCO₃) | 60 |
| Degrees Clark (°Clark) | 4.2 |
| Degrees French (°fH) | 6 |
| Degrees German (°dH) | 3.4 |
| Calcium (mg/L Ca²⁺) | 24 |
Supplier and area
Read the hardness explanation here, then enter your postcode on the linked drinking water quality checker to see your area's calcium and magnesium levels.
Other areas near Swansea
Common questions about SA3
What is the water hardness in SA3 Swansea?
Which water company supplies SA3?
Is the water in SA3 safe to drink?
How can I reduce water hardness in SA3?
What does 60 ppm water hardness mean?
What size water softener do I need in SA3?
How much does it cost to run a water softener in SA3?
Check another postcode
Compare hardness across areas before moving or buying a softener.