Rhyl Water Hardness & Quality Report (2026)
Water Hardness
~0–99 mg/L
Softestimated · not lab-verified
Source
reservoir
pH Level
7.3
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
131.1 mg/L
Est. Daily Cost
£0.11
energy & soap waste
Source: DWI Data Portal · Updated 2026
0–99
mg/L
Soft
100–149
mg/L
Slightly Hard
150–199
mg/L
Moderately Hard
200–300
mg/L
Hard
300+
mg/L
Very Hard
Appliance Damage Report
In Rhyl, your appliances are currently losing 7% efficiency due to mineral buildup.
| Appliance | In Rhyl | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.9 yrs | 8.5 yrs | -7% |
| Washing Machine | 11.2 yrs | 12 yrs | -7% |
| Water Heater | 14 yrs | 15 yrs | -7% |
Regional Water Comparison
How Rhyl compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Rhyl, Wales | ≈ 0–99 mg/L | 3.5° | 🟢 Soft | reservoir |
| Prestatyn, Wales | ≈ 100–150 mg/L | 5.9° | 🟡 Slightly Hard | reservoir |
| Abergele, Wales | ≈ 100–150 mg/L | 5.5° | 🟡 Slightly Hard | reservoir |
| Colwyn Bay, Wales | ≈ 0–100 mg/L | 5.2° | 🟢 Soft | reservoir |
| Llandudno, Wales | ≈ 150–200 mg/L | 9.6° | 🟡 Moderately Hard | reservoir |
National Benchmark
How Rhyl compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Rhyl | ≈ 0–99 mg/L | 🟢 None |
| United Kingdom National Avg | 177 mg/L | 🟡 Moderate |
| Skipton Top Rated | 7.1 mg/L | 🟢 None |
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What Makes Rhyl's Water Unique?
Local geology and source profile
Unfortunately, specific water supply details for Rhyl, Wales, are not readily available. While HD Cymru (also known as Dŵr Cymru Welsh Water) serves the area, the exact hardness, primary water sources, and treatment plant names for your supply couldn't be found in the provided information. For precise details about your water quality, including hardness levels, it's best to use the HD Cymru online water quality checker at hdcymru.co.uk by entering your postcode, or you can call them directly at 0800 085 8033.
Your water originates from the Denbigh Moors, a highland catchment area. The underlying geology consists of Silurian greywacke and Ordovician rocks. This upland environment, characterized by these specific rock types, results in a very low mineral content in the water, which translates to it being exceptionally soft. The Natural Resources Wales agency also plays a role in overseeing water quality in the Denbighshire region.
Given its very soft nature, you'll likely find that water in Rhyl doesn't leave behind much scale buildup in your appliances, like kettles or water heaters. You might also notice that soaps and detergents lather up more easily, meaning you may need to use less product. While soft water is generally good for plumbing and appliances, some people find the taste different compared to harder water. If you're used to harder water, you might consider a water softener, though it's often not necessary with water this soft.
Geology & Source: Silurian greywacke and Ordovician; upland catchment yields very soft water
Other Wales Water Reports
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