WaterHard.uk

Water Hardness in TR20 Penzance

Supplied by South West Water • Cornwall, South West

102 PPM 0 200 400
Slightly Hard
102
ppm (mg/L CaCO₃)
7.1°
Clark Degrees
5.7°
German Degrees (dH)
10.2°
French Degrees (fH)

Water Hardness in Penzance (TR20)

The water in postcode district TR20 is classified as slightly hard with a hardness level of 102 ppm (parts per million) calcium carbonate. This is 105 ppm below the UK national average of 207 ppm.

Your water is supplied by South West Water, which serves the South West region. South West Water draws water from sources that naturally contain dissolved minerals, primarily calcium and magnesium compounds.

What Does Slightly Hard Water Mean for Your Home?

  • ~ Minor limescale may appear in kettles over time
  • ~ Soap lathers reasonably well
  • ~ Appliances generally unaffected
  • ~ Good balance of mineral taste

Test Your Water in Penzance

At 102 ppm, your water is slightly hard. A home testing kit lets you verify the exact hardness and check for other contaminants.

SJ WAVE 16-in-1 Water Testing Kit

From ~£10

Quick home water test strips — checks hardness, pH, chlorine, lead, and 12 other parameters. Results in 60 seconds. 100 strips per pack.

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How TR20 Compares

Area Hardness PPM
TR20 Penzance
102 ppm
102 ppm
UK National Average
207 ppm
207 ppm

Nearby Areas

TR19
Penzance
78 ppm
TR21
Isles Of Scilly
103 ppm

Frequently Asked Questions

What is the water hardness in TR20 Penzance?
The water in TR20 Penzance has a hardness level of 102 ppm (parts per million) calcium carbonate, classified as slightly hard. This is 105 ppm below the UK national average of 207 ppm.
Which water company supplies TR20?
TR20 Penzance is supplied by South West Water. South West Water serves the South West region.
Is the water in TR20 safe to drink?
Yes. Slightly Hard water at 102 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 TR20?
At 102 ppm, the water in TR20 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 102 ppm water hardness mean?
102 ppm means there are 102 parts per million of calcium carbonate dissolved in the water. This is equivalent to 7.1 Clark degrees, 5.7 German degrees, or 10.2 French degrees. Water above 180 ppm is generally considered hard.

Learn More

All postcodes in Penzance South West Water coverage Hard water effects on your home Solutions for hard water

Get updates for TR20

We'll notify you when South West Water reports changes to water hardness in your area.