Water hardness

M46 Manchester

Near or below the UK average. Limescale builds slowly.

At 106 ppm, Manchester ranks near the UK's softest water areas — compare it against the hardest areas.

Slightly Hard 106 ppm North West United Utilities
Your reading
106
parts per million
Soft
Moderate
Hard
Very hard
0100200300400+

What this means for your home

Based on 106 ppm in Manchester (slightly hard water).

  • Minor limescale may appear in kettles over time
  • Soap lathers reasonably well
  • Appliances generally unaffected
  • Good balance of mineral taste
Heat loss
4%
Light scaling
Softener salt
£6–10
per year
Worth it?
No
at 106 ppm
Suggested for slightly hard water
Filter jug (optional)
Mainly a taste preference, limescale won't be a real issue here.
From £20
Maintenance habits
Routine descaling once or twice a year is plenty.
Free
Softening

Should you soften the water in Manchester?

A verdict and running-cost estimate based on M46's 106 ppm reading, for a typical 4-person household.

Softener optional

Water is soft to moderate, so limescale and soap costs are low and a softener rarely pays back.

Recommended size
24k
grain capacity, regenerates ~every 25.3 days
Salt running cost
£6–10
per year (~22 kg salt)
Limescale
4%
est. heater efficiency loss. Light scaling
Soap saving
Low
Some saving: expect to use slightly less soap and detergent.

Appliance impact at 106 ppm: slight: minor descaling extends kettle/boiler life. Sized for a 4-person home; regenerates roughly every 25 days (estimate). Figures are conservative estimates and vary with household size and usage.

Water quality details

Hardness data for M46

Sourced from United Utilities's published water-quality reports and public records.

Hardness measurements

Parts per million (ppm CaCO₃)106
Degrees Clark (°Clark)7.4
Degrees French (°fH)10.6
Degrees German (°dH)5.9
Calcium (mg/L Ca²⁺)43

Supplier and area

Water supplier United Utilities
Region North West
County Greater Manchester
Hardness band Slightly Hard
UK average 207 ppm
Visit United Utilities page
Official source
United Utilities Water Ltd water-hardness report

Read the hardness explainer (most North West water is soft or very soft) and download the factsheet for conversion tables.

Nearby

Other areas near Manchester

M45
Manchester
105ppm
Slightly Hard
FAQ

Common questions about M46

What is the water hardness in M46 Manchester?
The water in M46 Manchester has a hardness level of 106 ppm (parts per million) calcium carbonate, classified as slightly hard. This is 101 ppm below the UK national average of 207 ppm.
Which water company supplies M46?
M46 Manchester is supplied by United Utilities. United Utilities serves the North West region.
Is the water in M46 safe to drink?
Yes. Slightly Hard water at 106 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 M46?
At 106 ppm, the water in M46 is slightly hard and unlikely to cause significant issues. A jug filter can improve taste, but a water softener is generally not necessary.
What does 106 ppm water hardness mean?
106 ppm means there are 106 parts per million of calcium carbonate dissolved in the water. This is equivalent to 7.4 Clark degrees, 5.9 German degrees, or 10.6 French degrees. Water above 180 ppm is generally considered hard.
What size water softener do I need in M46?
For a typical 4-person home at 106 ppm, a 24,000 grain softener is a sensible size. It would regenerate roughly every 25.3 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 M46?
At 106 ppm, expect to use about 22 kg of salt a year, costing roughly £6–£10/year. Water is soft to moderate, so limescale and soap costs are low and a softener rarely pays back.

Your Manchester water action plan

Enter your email for the short list of things worth doing at 106 ppm, and the upgrades you can safely ignore.

Check another postcode

Compare hardness across areas before moving or buying a softener.