Welcome to Tenerife. You'll quickly notice a few things: the sun is reliable, the community is warm, and the water is hard. Very hard. Almost everyone who moves here from the UK has the same experience — the kettle furs up within weeks, hair feels different, and at some point an appliance engineer delivers the line: "It's the water." This guide tells you what you actually need to know, without the waffle.

What's in Tenerife's Water

Most of Tenerife South's water comes from desalination plants on the coast. The desalination process produces microbiologically safe water — it's not the bacteria or parasites you might worry about in some other destinations. What it leaves behind (or adds back through the distribution system) is a very high concentration of dissolved minerals, primarily calcium and magnesium.

Tenerife South typically tests at 500–600mg/L TDS (Total Dissolved Solids). To put that in context:

  • UK tap water average: ~240mg/L
  • EU hard water benchmark: ~300mg/L
  • WHO recommended limit: 500mg/L
  • Tenerife South: 500–600mg/L

You're consistently at or above the WHO guideline, and more than twice the hardness of what you were likely used to in the UK.

Can I drink it straight from the tap?

Technically yes — it's treated to drinking water standards. But most people find it tastes noticeably different from UK tap water. The high mineral content gives it a flat, slightly mineral taste, and it often has a mild chlorine smell from treatment. The vast majority of expats don't drink it straight; they buy bottled water or install a filter.

What It Does to Your Home

The effects start quickly and compound over time:

  • Kettle: Visible furring within 2–4 weeks. Element failure within 12–18 months if not descaled regularly.
  • Coffee machine: Heating chamber blocks within 1–2 years. Affects flavour noticeably before it fails entirely.
  • Washing machine: Element scales over 3–6 years. Replacement comes at least 4 years earlier than it would in the UK.
  • Dishwasher: White marks on glasses from the first month. Spray arms and internal surfaces scale progressively.
  • Boiler: Scale reduces efficiency, increases fuel costs, and shortens life expectancy.
  • Hair and skin: Mineral coating on the hair shaft, drier skin. Usually noticeable within the first month.
  • Shower screens and bathroom surfaces: Limescale builds up faster than in the UK — constant cleaning without a filter.

Your First Month: What to Do

1
Don't panic about drinking it
The water is microbiologically safe. Buy a few litres of bottled water while you settle in — this is fine short term and what most new arrivals do.
2
Descale your kettle immediately
If there's any existing scale from a previous tenant, clear it before it gets worse. Citric acid sachets work well.
3
Use a washing machine service wash
Run an empty 90°C cycle with a descaling sachet in the first week. Start from a clean baseline.
4
Get a water filter quote within the first month
Every week without a filter is a week of scale building in your appliances. Installation takes a couple of hours and we can usually visit within a few days of your call.

Which Filter Is Right for You?

Drinking water
Carbon Filter
€199
Under-sink. Removes chlorine, taste, and odour. Doesn't reduce mineral content or protect appliances. Good entry point if budget is tight.
Best for drinking
Reverse Osmosis
€399
Under-sink, dedicated tap. Reduces TDS from 500+ to under 20mg/L. Eliminates limescale in kettle and coffee machine filled from the filtered tap. Doesn't protect the washing machine or shower.
⭐ Most popular
Whole House Filter
€699
Mains inlet. Every tap, every appliance, every shower gets filtered water. Protects your washing machine, dishwasher, boiler, and skin. The most comprehensive solution.
The most popular choice for new arrivals

Most British expats who've been in Tenerife for a few years and who got a whole house filter say the same thing: "I wish I'd done it the week I arrived." The combination of whole house filter + reverse osmosis gives you clean water from every tap and ultra-pure drinking water from the kitchen tap — total cost €1,098, both installed in the same visit.

Frequently Asked Questions

Is Tenerife tap water safe for babies and young children?
Tenerife tap water meets EU drinking water standards microbiologically, but the very high mineral content means most paediatricians in Spain recommend against using it for formula or regular drinking for infants. Filtered water (reverse osmosis or bottled mineral water) is recommended for babies and young children. Once a filter is installed producing water under 100mg/L, this concern largely resolves.
Does the water quality differ across Tenerife?
Yes. Tenerife South (Costa Adeje, Los Cristianos, Arona, Las Américas, Golf del Sur) consistently measures 500–600mg/L due to heavy reliance on desalination. Tenerife North generally has access to more spring and groundwater sources and typically tests at 200–350mg/L — still hard, but noticeably softer. The problem is most pronounced in the south, which is where most British expats live.
Can I test my own water at home?
Yes — TDS meters are available from Amazon for around €10–20. Dip the probe into a glass of your tap water and it gives you an immediate TDS reading. 500+ confirms you have the typical Tenerife South water quality problem. We also test on arrival when we visit for a quote, at no charge.
How quickly can you install after I get in touch?
We typically visit within 2–3 days of first contact for an assessment and quote. If you'd like to proceed, installation is usually within a week. The installation itself takes 1–3 hours depending on the system. We cover Costa Adeje, Los Cristianos, Arona, Playa de las Américas, Golf del Sur, Palm Mar, and surrounding areas.
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Ultra Pure Water Tenerife British-owned water filtration specialists. Based in Tenerife South, serving Costa Adeje, Los Cristianos, Arona, Playa de las Américas and surrounding areas.

Get Sorted in Your First Week

WhatsApp us and we'll recommend the right system for your property and budget — and get it installed before the water causes any more damage. Most customers are up and running within a week of first contact.

WhatsApp Us Now See Pricing →

Based in Tenerife South. We typically reply within the hour.

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