Water hardness

CV13 Nuneaton

Harder than the UK average. Expect visible limescale on kettles and taps.

At 274 ppm, Nuneaton sits among the UK's hardest water areas — compare it against the softest areas.

Hard 274 ppm West Midlands Severn Trent Water
Your reading
274
parts per million
Soft
Moderate
Hard
Very hard
0100200300400+

What this means for your home

Based on 274 ppm in Nuneaton (hard water).

  • Significant limescale buildup in kettles, pipes and boilers
  • Soap scum on shower screens and taps
  • Higher energy bills from scale in heating elements
  • Dry skin and dull hair after washing
  • White residue on dishes and glassware
Heat loss
8%
Moderate scaling
Softener salt
£16–27
per year
Worth it?
Yes
at 274 ppm
Suggested for hard water
Whole-house water softener
Best long-term protection for boilers and pipes.
From £600 installed
Shower head filter
A simple first step for limescale on tiles and glass.
From £25
Filter jug or under-sink
Improves taste and reduces kettle scale.
From £20
Softening

Should you soften the water in Nuneaton?

A verdict and running-cost estimate based on CV13's 274 ppm reading, for a typical 4-person household.

Softener recommended

Water is hard to very hard, so appliance, scale and soap savings typically pay back a softener within a few years.

Recommended size
24k
grain capacity, regenerates ~every 9.8 days
Salt running cost
£16–27
per year (~56 kg salt)
Limescale
8%
est. heater efficiency loss. Moderate scaling
Soap saving
Moderate
Noticeable saving: soaps lather more easily, cutting detergent use.

Appliance impact at 274 ppm: noticeable: boiler/dishwasher life cut without descaling. Sized for a 4-person home; regenerates roughly every 10 days (estimate). Figures are conservative estimates and vary with household size and usage.

Water quality details

Hardness data for CV13

Sourced from Severn Trent Water's published water-quality reports and public records.

Hardness measurements

Parts per million (ppm CaCO₃)274
Degrees Clark (°Clark)19.2
Degrees French (°fH)27.4
Degrees German (°dH)15.4
Calcium (mg/L Ca²⁺)110

Supplier and area

Water supplier Severn Trent Water
Region West Midlands
County West Midlands
Hardness band Hard
UK average 207 ppm
Visit Severn Trent Water page
Official source
Severn Trent Water water-hardness report

Enter your postcode and pick a timeframe to see your area's measured water quality including hardness, with a downloadable PDF report.

Nearby

Other areas near Nuneaton

CV12
Bedworth
273ppm
Hard
FAQ

Common questions about CV13

What is the water hardness in CV13 Nuneaton?
The water in CV13 Nuneaton has a hardness level of 274 ppm (parts per million) calcium carbonate, classified as hard. This is 67 ppm above the UK national average of 207 ppm.
Which water company supplies CV13?
CV13 Nuneaton is supplied by Severn Trent Water. Severn Trent Water serves the West Midlands region.
Is the water in CV13 safe to drink?
Yes. Hard water at 274 ppm is safe to drink. Water hardness affects taste and can cause limescale, but it is not a health risk. In fact, hard water contains beneficial minerals like calcium and magnesium.
How can I reduce water hardness in CV13?
For hard water at 274 ppm, a whole-house water softener is the most effective solution. You can also use a jug filter for drinking water, descaling products for appliances, and a shower filter for better skin and hair.
What does 274 ppm water hardness mean?
274 ppm means there are 274 parts per million of calcium carbonate dissolved in the water. This is equivalent to 19.2 Clark degrees, 15.4 German degrees, or 27.4 French degrees. Water above 180 ppm is generally considered hard.
What size water softener do I need in CV13?
For a typical 4-person home at 274 ppm, a 24,000 grain softener is a sensible size. It would regenerate roughly every 9.8 days. Larger households or higher daily use need a bigger unit. These figures are conservative estimates.
How much does it cost to run a water softener in CV13?
At 274 ppm, expect to use about 56 kg of salt a year, costing roughly £16–£27/year. Water is hard to very hard, so appliance, scale and soap savings typically pay back a softener within a few years.

Check another postcode

Compare hardness across areas before moving or buying a softener.