Water hardness

TA18 Crewkerne

Near or below the UK average. Limescale builds slowly.

At 35 ppm, Crewkerne ranks near the UK's softest water areas — compare it against the hardest areas.

Soft 35 ppm South West South West Water
Your reading
35
parts per million
Soft
Moderate
Hard
Very hard
0100200300400+

What this means for your home

Based on 35 ppm in Crewkerne (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
Heat loss
1%
Minimal scaling
Softener salt
£2–3
per year
Worth it?
No
at 35 ppm
Suggested for soft 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 Crewkerne?

A verdict and running-cost estimate based on TA18's 35 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 76.5 days
Salt running cost
£2–3
per year (~7 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 35 ppm: negligible: appliances reach full expected life. Sized for a 4-person home; regenerates roughly every 77 days (estimate). Figures are conservative estimates and vary with household size and usage.

Water quality details

Hardness data for TA18

Sourced from South West Water's published water-quality reports and public records.

Hardness measurements

Parts per million (ppm CaCO₃)35
Degrees Clark (°Clark)2.4
Degrees French (°fH)3.5
Degrees German (°dH)2
Calcium (mg/L Ca²⁺)14

Supplier and area

Water supplier South West Water
Region South West
County Somerset
Hardness band Soft
UK average 207 ppm
Visit South West Water page
Official source
South West Water water-hardness report

Most of the region is soft water, except East Devon; use the postcode lookup on this page to find your address's specific water quality.

Nearby

Other areas near Crewkerne

TA17
Hinton St George
34ppm
Soft
TA19
Ilminster
36ppm
Soft
TA20
Chard
60ppm
Soft
FAQ

Common questions about TA18

What is the water hardness in TA18 Crewkerne?
The water in TA18 Crewkerne has a hardness level of 35 ppm (parts per million) calcium carbonate, classified as soft. This is 172 ppm below the UK national average of 207 ppm.
Which water company supplies TA18?
TA18 Crewkerne is supplied by South West Water. South West Water serves the South West region.
Is the water in TA18 safe to drink?
Yes. Soft water at 35 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 TA18?
At 35 ppm, the water in TA18 is soft and unlikely to cause significant issues. A jug filter can improve taste, but a water softener is generally not necessary.
What does 35 ppm water hardness mean?
35 ppm means there are 35 parts per million of calcium carbonate dissolved in the water. This is equivalent to 2.4 Clark degrees, 2 German degrees, or 3.5 French degrees. Water above 180 ppm is generally considered hard.
What size water softener do I need in TA18?
For a typical 4-person home at 35 ppm, a 24,000 grain softener is a sensible size. It would regenerate roughly every 76.5 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 TA18?
At 35 ppm, expect to use about 7 kg of salt a year, costing roughly £2–£3/year. Water is soft to moderate, so limescale and soap costs are low and a softener rarely pays back.

Your Crewkerne water action plan

Enter your email for the short list of things worth doing at 35 ppm, and the upgrades you can safely ignore.

Check another postcode

Compare hardness across areas before moving or buying a softener.