Pool maintenance Estepona: a practical guide for owners

Three things decide whether your pool stays clear: the pH, the amount of active chlorine and how often someone looks at it. Search for pool maintenance Estepona and most advice skips a fourth factor: the climate. From El Paraíso to Valle Romano, pools sit in full sun for most of the year, and in autumn a single downpour can throw the water off balance within hours. This guide sets out the facts, so you know what to watch for.

In short:

• Test the pH first (7.2–7.6), then adjust the chlorine.
• A chlorine smell usually signals a shortage of free chlorine, not an excess.
• In summer, 1–2 visits a week and 8–12 hours of filtering a day are typical.
• After a DANA or calima, an extra check is always needed.
• A saltwater pool also runs on chlorine and regularly needs pH reducer.

Testing in the right order: pH before chlorine

In water, chlorine forms hypochlorous acid, the compound that kills bacteria and algae. How much of it is active depends heavily on the pH. At pH 7.2, roughly two thirds of the free chlorine is working; at pH 8.0, only about a quarter. A test strip can therefore read 'enough chlorine' while the water is barely protected. Adding chlorine first and correcting the pH afterwards gets the order wrong.

The smell is misleading too. The familiar pool smell comes from chloramines: chlorine that has already reacted with sweat, sun cream or other dirt. If the pool smells strongly, there is usually too little free chlorine, not too much.

Practical targets for a private outdoor pool:

• pH: 7.2–7.6
• free chlorine: 1–3 mg/l
• cyanuric acid (stabiliser): 30–50 mg/l
• calcium hardness: 200–400 mg/l; the right figure depends on tiles, plaster or liner

Without stabiliser, a sunny afternoon leaves little free chlorine after a few hours. But more is not better. Multifunction chlorine tablets add stabiliser with every dose. Once cyanuric acid passes roughly 80–100 mg/l, chlorine is slowed down so much that the water can turn green while the reading looks fine. The level does not drop by itself; only a partial water change helps.

Visits and pump hours: pool maintenance Estepona through the year

A guide only, as volume, pump flow, water temperature and use differ from pool to pool:

• June to September: 1–2 visits a week, pump running 8–12 hours a day. Test pH and chlorine twice a week and top up evaporated water. Above 25 °C water temperature, algae grow much faster.
• October and November: weekly, 6–8 hours of filtering. More leaves and sand from storms, more frequent backwashing.
• December to February: every two weeks, 4–6 hours of filtering. Keep an eye on water balance and equipment.
• March to May: weekly, 6–8 hours of filtering, starting with a spring service in which the walls are brushed, the filter is cleaned and the water gets a shock treatment.

On top of that, a yearly inspection covers the filter sand or cartridge, valves and joints. Have the calcium hardness measured then as well: mains water hardness varies by urbanización, and hard water leaves scale on tiles and in the chlorinator.

After a DANA, calima or storm

• Heavy rain (DANA): soil, leaves and a lot of extra water dilute the chlorine, shift the pH and, in a salt pool, lower the salt level. Once the water is above the skimmers, surface cleaning stops. Bring the level back down in a way that suits the pool's construction and drainage, test again and shock if needed.
• Calima: fine Saharan dust leaves an orange-brown layer on the floor, silts up the filter and gives algae nutrients. Vacuuming and backwashing are almost always needed.
• Autumn storm: leaves and blossom rot and eat up chlorine. A full pump basket can leave the pump running dry.

Salt or fresh: what changes in the maintenance?

A saltwater pool usually holds 4 to 6 grams of salt per litre, against around 37–38 grams in Mediterranean seawater. Electrolysis in the chlorinator converts that salt into chlorine. You buy little chlorine, but the system drives the pH up, so pH reducer is needed regularly. Every so often the cell needs descaling, and after rain you check that the salt is still within the manufacturer's range. Metal fittings, natural stone and grout around the pool deserve attention, because salt corrodes them faster.

In a freshwater pool, chlorine goes in by hand or through a dosing pump. The equipment is simpler, but summer means more frequent topping up, and with stabilised tablets the cyanuric acid needs watching.

If you are away a lot, salt with automatic pH dosing tends to keep the water steadiest. But if the chlorinator stops, nobody notices until the water changes colour, so someone still has to check.

What we do

For pool maintenance Estepona owners can rely on, Faro Costa – Property Care follows the same round on every visit:

1. Remove leaves and debris, brush and vacuum the floor and walls.
2. Clear out the skimmer and pump baskets.
3. Read the filter gauge and backwash if the pressure is too high.
4. Measure and adjust the pH before touching the chlorine or salt level.
5. Make sure the pump, timer, dosing and chlorinator are working properly.
6. Check the water level and visible joints.
7. Send a photo update via WhatsApp, including the readings.

We handle problems with pumps, filters, skimmers, lights or leaking joints ourselves. For underground leak detection or certified electrical work, we bring in a qualified specialist partner where needed. You can read more about our approach on the page about pool maintenance in Estepona.

Frequently asked questions

How often does my pool need servicing in summer?

Usually once or twice a week, with at least two pH and chlorine tests. Heavy use or lots of leaves around the pool can mean more.

Why does my pool smell strongly of chlorine?

The smell comes from chloramines. There is usually too little free chlorine to break down the dirt fully. Start by testing the pH, then measure the free chlorine.

My water is green but the chlorine looks fine. How?

Often the pH is too high, or cyanuric acid has built up from stabilised tablets. In the second case, only a partial water change helps.

Is a saltwater pool maintenance-free?

No. The system pushes the pH up, scale forms on the cell and the salt level needs regular testing against the manufacturer's values.

What happens if I am away from Spain for months?

With regular visits, problems are spotted early and corrected. After every visit you receive photos and readings, so you know how the pool is doing.

Want your pool in good hands while you are away? We speak Dutch, English, Spanish and Polish. Get in touch or email info@farocosta.com.