Water hardness

LL29 Colwyn Bay

Near or below the UK average. Limescale builds slowly.

At 76 ppm, Colwyn Bay ranks near the UK's softest water areas — compare it against the hardest areas.

Slightly Hard 76 ppm Wales Welsh Water (Dwr Cymru)
Your reading
76
parts per million
Soft
Moderate
Hard
Very hard
0100200300400+

What this means for your home

Based on 76 ppm in Colwyn Bay (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
1%
Minimal scaling
Softener salt
£4–7
per year
Worth it?
No
at 76 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 Colwyn Bay?

A verdict and running-cost estimate based on LL29's 76 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 35.2 days
Salt running cost
£4–7
per year (~16 kg salt)
Limescale
1%
est. heater efficiency loss. Minimal scaling
Soap saving
Minimal
Water is already soft, so there is little detergent saving from softening.

Appliance impact at 76 ppm: negligible: appliances reach full expected life. Sized for a 4-person home; regenerates roughly every 35 days (estimate). Figures are conservative estimates and vary with household size and usage.

Test Your Water in Colwyn Bay

At 76 ppm, your water is slightly hard. A home testing kit lets you verify the exact hardness and check for other contaminants.

TESPERT 16-in-1 Water Testing Kit

From ~£10

Home water test strips that check hardness, pH, chlorine, lead, and 12 other parameters. Results in around 60 seconds. 125 strips per pack.

View on Amazon
Water quality details

Hardness data for LL29

Sourced from Welsh Water (Dwr Cymru)'s published water-quality reports and public records.

Hardness measurements

Parts per million (ppm CaCO₃)76
Degrees Clark (°Clark)5.3
Degrees French (°fH)7.6
Degrees German (°dH)4.3
Calcium (mg/L Ca²⁺)30

Supplier and area

Water supplier Welsh Water (Dwr Cymru)
Region Wales
County North Wales
Hardness band Slightly Hard
UK average 207 ppm
Visit Welsh Water (Dwr Cymru) page
Official source
Dwr Cymru Welsh Water water-hardness report

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.

Nearby

Other areas near Colwyn Bay

LL28
Colwyn Bay
75ppm
Slightly Hard
LL30
Llandudno
100ppm
Slightly Hard
LL31
Llandudno Junction
101ppm
Slightly Hard
FAQ

Common questions about LL29

What is the water hardness in LL29 Colwyn Bay?
The water in LL29 Colwyn Bay has a hardness level of 76 ppm (parts per million) calcium carbonate, classified as slightly hard. This is 131 ppm below the UK national average of 207 ppm.
Which water company supplies LL29?
LL29 Colwyn Bay is supplied by Welsh Water (Dwr Cymru). Welsh Water (Dwr Cymru) serves the Wales region.
Is the water in LL29 safe to drink?
Yes. Slightly Hard water at 76 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 LL29?
At 76 ppm, the water in LL29 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 76 ppm water hardness mean?
76 ppm means there are 76 parts per million of calcium carbonate dissolved in the water. This is equivalent to 5.3 Clark degrees, 4.3 German degrees, or 7.6 French degrees. Water above 180 ppm is generally considered hard.
What size water softener do I need in LL29?
For a typical 4-person home at 76 ppm, a 24,000 grain softener is a sensible size. It would regenerate roughly every 35.2 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 LL29?
At 76 ppm, expect to use about 16 kg of salt a year, costing roughly £4–£7/year. Water is soft to moderate, so limescale and soap costs are low and a softener rarely pays back.

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Check another postcode

Compare hardness across areas before moving or buying a softener.