Pool & water treatment · Mallorca

Pool & water treatment in Mallorca · Joaquín and Juan since 1998

Mallorca's water is hard and full of limescale, and a pool needs looking after. We sort both: water softeners and reverse osmosis for your home's water, and pool treatment, maintenance and repair with Astralpool kit, plus a heated pool with a heat pump so you swim from April to October. We find leaks, service the plant and get the water right, inside the house and out. Licensed plumbing company. Juan comes, Joaquín comes, or we both come — we don't subcontract.

No-obligation quote · Same-day reply · We look after you in English, Spanish and German

  • Scale-free water
  • Pool ready
  • Leaks found
  • EN · ES · DE
Pool of a home in Mallorca with the water treated and maintained by JSL
Built for Mallorca's hard water Softening · Osmosis · Pool Astralpool, Kinetico and BWT kit Service in English, Spanish and German

What we do with water

From the kitchen tap to the pool

We treat the water coming into your home and look after the water in your pool. One call for both.

Water softening

Mallorca's hard water clogs pipes and ruins taps and heaters. We fit Kinetico (Premier Plus and Compact) and BWT softeners, properly sized for the whole home.

Osmosis for drinking

Light, scale-free drinking water straight from the kitchen tap with a Kinetico K10 reverse-osmosis unit. Ideal where the water tastes of scale or salt.

Pool treatment

Pump, filter, chlorine or salt dosing and pH control with Astralpool kit. Clear, balanced water all season.

Leaks and faults

We find and repair leaks in pipes, valves and the pool plant room. If the level drops more than normal, we track down where the water is going.

Season prep

Before summer we get the plant and the water ready for your arrival. Perfect for owners who aren't on the island all year.

Heated pool

Pool heat pump and thermal cover to keep the water at 26-28 °C and swim from April to October. For indoor pools, dehumidification too.

Irrigation

We also install garden irrigation. Water sorted, inside the house and out.

Why it matters here

Mallorca's water needs treating

Across much of the island the water comes out very hard, with hardness that in many areas tops 40-60 French degrees when the recommended level is below 15. You don't see the scale at first, but it eats away at the installation: it clogs pipes, leaves taps chalky, shortens the life of the water heater and the washing machine, and marks screens and tiles.

A softener for the whole house

A properly sized water softener treats the water entering the home and stops the scale before it does any harm. We fit Kinetico units — which run on the water's own pressure, with no electricity or timer — and BWT. It's the single investment that most extends the life of your whole plumbing.

Osmosis for drinking water

If you also want top-quality drinking water, a reverse-osmosis unit in the kitchen (Kinetico K10) removes scale, salts and tastes and gives you light water straight from the tap, with no bottles or plastic.

The pool, properly looked after

On the pool we look after the technical side: pump, filter, multiport valve and dosing with Astralpool kit. We install and maintain both salt chlorination and classic chlorine dosing, and we keep an eye on pH, which is what really keeps the water healthy and clear. And when something is losing water, we find the leak and repair it.

How we work

Your water sorted in 3 steps

1

Visit and test

We look at your home or your pool, measure the water hardness and the state of the installation, and tell you what you actually need. Fixed, free, no-obligation quote.

2

Install or repair

We fit the softener, the osmosis unit or the pool kit, or repair the fault or the leak. Clean, well-finished work with material that doesn't give trouble.

3

Balance and maintain

We leave the water balanced and explain how it all works. If you like, we keep the maintenance so you don't have to think about it.

More months of swimming

A heated pool: April to October

In Mallorca, without heating, a pool is genuinely pleasant for about three months a year. With a pool heat pump the water stays between 26 and 28 °C and the season stretches from spring well into autumn. The island's mild climate is ideal for these units: they take heat from the air and, for every kWh of electricity, return several kWh of heat to the water.

The cover does half the work

Most of a pool's heat escapes through evaporation at the surface. A thermal cover or blanket stops that loss, cuts the heat pump's consumption and keeps the water cleaner too. If you're going to heat the pool, the cover isn't an extra: it's half the saving.

Aerothermal, solar and indoor pools

If your home has an aerothermal heat pump, it can heat the pool as well through a dedicated heat exchanger: one machine for house and pool. And if you have solar panels, the midday surplus is perfect for heating the water at minimal cost. Indoor pools also need dehumidification to control condensation and protect the room; we take care of that too.

Real work

Water and pool at a villa in Andratx

At villas like the one in Andratx we look after the water from start to finish: the home's water treatment against limescale and the pool's care — plant, dosing and water control — so the owner finds everything ready on arrival.

It's the same work we roll into JSL Villa Care, our maintenance service for owners who aren't in Mallorca all year: we check, we prepare and we flag things before a small problem becomes an expensive one.

Get your free quote

Real work

Pools and water we look after

Real JSL installations and maintenance in Mallorca.

Pool with a stainless steel ladder maintained by JSL in Mallorca

Pool ready

Maintenance · Home

Balanced, clear water, ready for the season.

Turquoise pool with up-to-date maintenance at a home in Mallorca

Crystal-clear water

Maintenance · Pool

pH control and filtration for healthy water all season.

Water pump and valves in the plant room installed by JSL in Mallorca

Plant room

Pump · Valves

Pump set and valves, fitted and sealed.

Common questions

Pool and water treatment FAQs

Is Mallorca's water hard? Softener or reverse osmosis?

Across much of Mallorca the water is very hard: in many areas it goes over 40-60 French degrees (fH) when comfortable is below 15. That limescale clogs pipes and ruins taps, heaters and appliances. A water softener (we fit Kinetico Premier Plus and Compact, and BWT) treats the whole house and stops the scale; reverse osmosis (Kinetico K10) is a further step, only for the kitchen drinking tap, and removes scale, salts and tastes. The usual setup in Mallorca is a softener for the whole home and, if you want quality drinking water, an osmosis unit in the kitchen.

Do you maintain and repair the pool plant room?

Yes. We look after the technical side of the pool: pump, filter (sand or glass), multiport valve, skimmers and dosing (chlorine or salt chlorination and pH control). We service the plant, replace pumps and filters that no longer perform and leave the water balanced. We don't do pool-shell building work or lifeguarding: we handle the hydraulic installation and the water treatment.

Do you find pool and pipe leaks?

Yes. We find and repair leaks and faults in pool plumbing: supply and return pipes, valves, the plant-room manifold and any joints that are losing water. If the pool drops more than normal evaporation would explain, we check where the water is going and make it watertight, with a quote before we touch anything.

Can you drink the tap water in Mallorca?

It depends on the area: in many towns the water is drinkable but very hard, with a lot of limescale and salts, so it tastes poor and damages the installation. A softener improves the water throughout the house, and if you want genuinely good drinking water, a reverse-osmosis unit in the kitchen gives you light, scale-free water. We tell you what actually fits your home without overselling.

Chlorine or salt for the pool? What do you install?

We install both and advise you based on your pool. Salt chlorination (electrolysis) is very convenient day to day: the salt generates just the right amount of chlorine and the water is gentler on skin and eyes, though the equipment is a bigger upfront investment. Classic chlorine dosing is cheaper to start with. With both we look after pH control, which is what really keeps the water healthy and clear. We work with Astralpool kit.

Do you get the pool ready before summer?

Yes, it's one of the most common requests from owners who don't live in Mallorca all year. Before the season we check the pump and filter, make sure there are no leaks, balance the water and leave the plant ready so the pool is in order when you arrive. If you have a villa, we roll it into our JSL Villa Care maintenance service.

Can you heat a pool in Mallorca? How many extra months of swimming do I get?

Yes, and Mallorca's climate is one of the best for it. With a pool heat pump the water stays at 26-28 °C and you go from swimming around three months a year to swimming from April to October. The heat pump takes energy from the air — for every kWh of electricity it returns several kWh of heat to the water — and performs especially well in the island's mild temperatures. We size it to the pool's volume, whether it's outdoor or indoor, and whether it has a cover.

What does heating a pool cost to run, and how do I cut the bill?

The enemy is evaporation: it's where a pool loses most of its heat. So the first thing we recommend is a thermal cover or blanket, which stops that loss and cuts the heat pump's consumption considerably. The second is using your solar: if you have panels, the midday surplus heats the pool at minimal cost. With a cover and a properly sized heat pump, keeping the water at 27 °C in season is a reasonable expense, not a luxury.

Can the house's heat pump also heat the pool? And an indoor pool?

Yes. A well-planned aerothermal heat pump can climate-control the home and, with a dedicated heat exchanger, the pool too: one machine for everything. It's one of the combinations we propose most often in villas. Indoor pools also need dehumidification: warm water in a closed room creates condensation that ruins joinery and walls, so we control the air's humidity as well as the water temperature. We take care of both.

Do you cover the whole of Mallorca, and in several languages?

Yes, we work across the whole island of Mallorca and look after you in English, Spanish and German. We reply the same day to arrange the visit and give you a fixed, no-obligation quote. Juan comes, Joaquín comes, or we both come: we don't subcontract. See our work and customer reviews on the JSL Google Maps profile →.

You might also need

Related services

Water treatment is part of good plumbing, and it fits with the full maintenance of your home or villa.

Plumbing

Cold and hot water, DHW, pressure sets, water pumps and leak repair throughout the home.

JSL Villa Care

Annual maintenance for international owners: water, pool, climate and electrics checked, with a photo report.

Heat pump

Domestic hot water, heating and cooling from a single high-efficiency heat pump.

Shall we get your water sorted?

We give you a free, no-obligation quote, for the home and for the pool. Call us today and we'll take a look.