SA11 Neath
Near or below the UK average. Limescale builds slowly.
At 43 ppm, Neath ranks near the UK's softest water areas — compare it against the hardest areas.
What this means for your home
Based on 43 ppm in Neath (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 Neath?
A verdict and running-cost estimate based on SA11's 43 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 43 ppm: negligible: appliances reach full expected life. Sized for a 4-person home; regenerates roughly every 62 days (estimate). Figures are conservative estimates and vary with household size and usage.
Hardness data for SA11
Sourced from Welsh Water (Dwr Cymru)'s published water-quality reports and public records.
Hardness measurements
| Parts per million (ppm CaCO₃) | 43 |
| Degrees Clark (°Clark) | 3 |
| Degrees French (°fH) | 4.3 |
| Degrees German (°dH) | 2.4 |
| Calcium (mg/L Ca²⁺) | 17 |
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 Neath
Common questions about SA11
What is the water hardness in SA11 Neath?
Which water company supplies SA11?
Is the water in SA11 safe to drink?
How can I reduce water hardness in SA11?
What does 43 ppm water hardness mean?
What size water softener do I need in SA11?
How much does it cost to run a water softener in SA11?
Your Neath water action plan
Enter your email for the short list of things worth doing at 43 ppm, and the upgrades you can safely ignore.
Check another postcode
Compare hardness across areas before moving or buying a softener.