Tap Water in ME12
Your water is pumped from underground sources in the chalk at Eastling. — Southern Water
Tap water in Your water is pumped from underground sources in the chalk at Eastling., supplied by Southern Water, has the character of a chalk aquifer source, typical of southern and eastern England. It's hard water, well above the national average, with a total hardness of 303 mg/L as CaCO₃. Bicarbonate is high at 331 mg/L: this water suits dark-roasted, milk-based coffee well, but will strip the acidity from lighter roasts and pour-over brewing.
Mineral composition
| mg/L | |||
|---|---|---|---|
| Calcium | ~112 | ||
| Magnesium | ~6 | ||
| Sodium | 12 | ||
| Sulfate | 10 | ||
| Chloride | 33 | ||
| Bicarbonate | ~331 | ||
| ~ Estimated from hardness and ion balance — not directly measured by the water company. | |||
Additional info
| Hardness | 302.6 as CaCO₃ |
| Alkalinity | 271.1 as CaCO₃ |
| pH | 7.2 |
| Conductivity | 557.34615 µS/cm |
| Source | Southern Water |
| Data year | 2024 |
What this means
Kettle & appliances
Limescale is a persistent issue. Kettles fur up quickly, and boilers, dishwashers, and washing machines all accumulate scale that reduces efficiency and shortens lifespan. Water treatment (a softener, inhibitor, or filter) is strongly recommended.
Espresso
Scale is a serious concern at this level: machines need regular descaling and filtration is strongly recommended. In the cup, the water has strong opinions. Light roasts lose their acidity and origin character almost entirely. But dark-roasted, milk-based espresso can work well here. London's coffee culture developed around exactly this kind of water: strong, dark-roasted coffee served with milk, where the density and body that hard water produces become a virtue rather than a flaw.
Filter & pour-over
Hard water hits filter coffee harder than espresso because the brewing ratio gives it more influence. Lighter roasts will taste flat and indistinct; the buffering neutralises the acidity that carries fruit and floral notes. Darker roasts produce a drinkable but heavy cup. If you're brewing pour-over with water this hard, the water is the first thing to address.
Drinking & cooking
Noticeably mineral-heavy on the palate. Soap and shampoo lather poorly. Tea may develop a film on the surface (that's the calcium reacting with tannins). Cooking water may leave a chalky residue on pans.
Bicarbonate
Heavily buffered water that resists pH change substantially: suited only to the darkest, most roast-forward beer styles (and even then may need dilution), while espresso at this level will taste dull, chalky, and lacking definition, with almost all origin character neutralised by the alkalinity.
Closest water profiles
Nearby areas
ME1
Your water is pumped from underground sources in the chalk at Strood and Cuxton,
Southern Water
ME2
Your water is pumped from underground sources in the chalk at Strood and Cuxton,
Southern Water
ME3
Your water is pumped from underground sources in the chalk at Higham, Three Crut
Southern Water
ME4
Your water is pumped from underground sources in the chalk at Nashenden and Lut
Southern Water
ME5
Your water is pumped from underground sources in the chalk at Nashenden, Matts H
Southern Water
ME7
Your water is pumped from underground sources in the chalk at Nashenden, Matts H
Southern Water
Data sourced from Southern Water (2024). Looking for a specific address? Look up your full postcode for the most accurate result.