11mg of limescale minerals in every litre, the median across HS districts
Is Outer Hebrides a hard water area?
No. Tap water across the HS postcode area is soft, so limescale is not a problem here, with a median of 11 mg/L calcium carbonate. It ranges from 10 mg/L in HS4 to 21 mg/L in HS9, from 6 districts with their own water company reading and 3 estimated from the area.
- Soft
- 0 to 60 mg/L
- Moderately soft
- 60 to 120 mg/L
- Slightly hard
- 120 to 180 mg/L
- Hard
- 180 to 200 mg/L
- Very hard
- 200 to 400 mg/L
Hardness by HS district
Hardest first. Hard starts at 180 mg/L, very hard at 250. Districts marked with an asterisk take the area's median rather than a reading of their own.
You do not need a softener in Outer Hebrides.
At 11 mg/L the practical effects are minor. If you notice anything, it is usually chlorine rather than hardness: a shower filter or a filter jug deals with that.
Check your exact postcode
The area figure is a median. Your district can sit anywhere between 10 and 21 mg/L.
Questions about Outer Hebrides water
Is Outer Hebrides a hard water area?
No. The median hardness across HS postcode districts is 11 mg/L calcium carbonate, which is soft. 0% of the 9 districts we hold readings for are hard or very hard (180 mg/L and above).
What is the water hardness in Outer Hebrides?
Between 10 and 21 mg/L depending on the district, with a median of 11. The hardest measured district is HS9 at 21 mg/L and the softest is HS4 at 10. Figures come from water company drinking-water tests, with postcode-area estimates for districts that have no reading of their own.
Do I need a water softener in Outer Hebrides?
Usually not. At a median of 11 mg/L limescale is a minor issue in Outer Hebrides. A filter jug or a shower filter covers the everyday effects. Only districts at 180 mg/L or above are worth a softener quote.
Hardness as mg/L calcium carbonate from water company drinking-water tests and postcode checkers. See the UK hardness map for every area.