The community pool is, alongside the gardens, the installation that receives the most demand in a community on the Costa del Sol. It's also the one that generates the most visibility: if it's working well, nobody talks about it; if it's not, you get complaints every week during the season.
This guide explains what a professional pool maintenance service should include, when to open and close the season in Málaga and the Costa del Sol, the basic chemical products used, and common mistakes that end up inflating the service cost.
What a professional pool maintenance service includes
Not all maintenance is equal. A well-planned professional service includes four main blocks:
1. Water chemical treatment
The foundation. Maintaining water with correct parameters of chlorine, pH, alkalinity, cyanuric acid (stabiliser) and hardness. Done several times per week during peak season and at least once per week in lower-use periods.
If parameters get out of control — especially chlorine and pH — water can become cloudy, green or irritate skin and eyes. Reacting late requires shock treatment, which is expensive and leaves the pool unusable for 24-48 hours.
2. Physical cleaning of pool and adjacent areas
Bottom vacuuming, wall and ladder brushing, skimmer cleaning, emptying pump pre-filter baskets, leaf and debris removal from the surface. Frequency 1-2 times per week in season, depending on use and environment.
Pools with gardens around or near pine trees require more physical cleaning because more plant material falls in. Pools in wind-exposed areas (common in coastal urbanisations) receive more sand and dust.
3. Equipment room maintenance
Periodic review of the pump, filter, valves, electrical panel, chlorination system (if salt) and underwater lighting. These reviews detect problems before they cause serious failures. A pump that starts failing and isn't detected ends up burning out in mid-August — and replacing it urgently, in peak season, multiplies the price.
4. Season opening and closing
Specific procedures to start the pool in spring and prepare it for winter. Each has its task list and is done once a year. More detail in the next section.
When to open and close the pool on the Costa del Sol
Dates depend on the year, urbanisation altitude and whether the community keeps the pool operational year-round (some premium urbanisations in Marbella or Mijas-Costa keep it always ready). But the general pattern on the Costa del Sol is:
Opening: March
The technically correct moment to open is late March or early April, before Easter. Communities that wait until May make two mistakes:
- Easter arrival with pool closed. If there are visitors, owners returning from other areas, holiday rentals, etc., dissatisfaction is direct.
- Late breakdown detection. If a problem appears at opening (burnt pump, leaks, damaged electrical equipment), repairing in April is very different from repairing in May when all technicians are saturated.
- Peak season prices. In March, repair and installation prices are normal. In May-June, the sector is overloaded and prices go up.
Opening includes: partial or full draining depending on water state, pool cleaning (sponge, chlorine, scale removal), complete equipment review, refilling, initial chemical treatment, and starting the filtration system.
Closing: October
On the Costa del Sol the season typically closes in October, not September. The water remains warm, there are owners still using it, and closing earlier leaves a pointless dead month. Communities in higher zones (Mijas, parts of Benalmádena Pueblo) sometimes close at the end of September due to temperature.
Closing includes: final chemical treatment (high chlorine + algicide), partial draining (10-20% to prevent overflow with rains), covering if the community uses tarp/cover, leaving the pump at minimum during winter to keep water circulating.
Some communities in Marbella or Mijas-Costa of premium profile never close the pool. They keep it operational year-round (sometimes even heated), with reduced winter maintenance. This raises the service cost but offers a differential value to owners.
Basic chemical products (what your company should use)
If you want to understand the chemical product invoice, these are the main ones:
- Chlorine — disinfects water. Comes in several formats: tablets (more convenient, constant dosing), granular (faster for shock treatments), liquid (less common industrial use in community pools).
- pH reducer — to lower pH if it rises above 7.6. Usually sulphuric acid or sodium bisulphate.
- pH increaser — to raise it if it drops below 7.2. Sodium carbonate.
- Preventive algicide — prevents green/black algae appearance, especially in peak season with extreme heat.
- Flocculant — to clarify cloudy water. Makes suspended particles group and fall to the bottom for vacuuming.
- Stabiliser (cyanuric acid) — protects chlorine from sun UV radiation. Essential on the Costa del Sol because without it chlorine degrades in hours.
A professional company includes products in the contract (in the monthly price) or invoices them separately transparently. What shouldn't happen is for them to charge random amounts month by month without reporting consumption.
Recommended minimum frequencies
These are standard frequencies for a community pool on the Costa del Sol. If your company proposes less, it's worth understanding why.
Peak season (June-September):
2-3 weekly visits for chemical treatment + cleaning, fortnightly equipment review, products according to real consumption.
Mid season (April-May and October):
1-2 weekly visits, basic maintenance, treatment adjustment based on real use.
Winter (November-March, with pool closed):
Monthly visit for minimum pump review, occasional algae treatment, water level monitoring.
Common mistakes that drive up the cost
1. Opening the pool without reviewing equipment
Filling the pool without having checked pump, filter, valves and electrical panel. If something fails when there's water, repairs are more expensive and, if draining is required, the filling was wasted.
2. Reducing July-August frequency to save
It's counterintuitive, but some committees reduce frequency precisely when there's most traffic to save. Typical result: cloudy water, algae, shock treatment, pool closed for use. The monthly "saving" is returned multiplied.
3. Changing provider in peak summer
Changing pool maintenance company in July or August is complicated because all serious providers have saturated portfolios. If you want to change, do it in February-March: the new company enters at opening, takes responsibility from scratch and prices are normal.
4. Not having minimum product stock
If the pool needs urgent treatment on a Saturday afternoon and the company has no stock, you have to wait until Monday. A professional company maintains reasonable stock of basic products for emergencies.
5. Ignoring small leaks
A small leak in a joint or equipment room seems minor, but if not repaired, in a few months it becomes excessive water consumption, electrical problems in the equipment room and sometimes structural damage. Detected in regular preventive review. Without that review, appears as a surprise.
Conclusion: pools don't fail in August, they fail in March
Most problems that appear in mid-summer could have been detected at opening. That's why it pays to hire a company that does careful opening in March and regular maintenance throughout the season, not just "when there's an incident".
If your community is looking for a pool maintenance company or you want to review what you have contracted: contact us. We visit the installation, assess equipment state and deliver a detailed quote adapted to real pool use.