Is an automatic pool cover worth it for a pool in the Algarve?
An automatic cover is the only piece of pool equipment that reduces evaporation, holds heat and acts as a safety barrier at the same time, and the first two are why it changes a pool's running costs more than any other single purchase. Whether that is worth paying for depends on how the pool is used, and there are pools we would not fit one to at all.
The climate here is wonderful for pool owners. Summers are long and dry, and the evenings stay warm well into October, so a pool gets a lot of use.
That same climate creates specific pressures. Evaporation is relentless. UV light breaks materials down quickly. Atlantic winds can lift an improperly secured cover clean off its fixings, and the coastal air carries enough salt to corrode inferior metalwork within a season or two.
We have been installing automatic covers across this region since 2008. Over that time you build up a reasonable sample. You see which systems hold up and which need constant attention, you learn which features clients actually use and which they pay for once and then ignore, and you develop a clear sense of what works in these conditions in practice rather than in theory.
This is what that experience has taught us.
Why does an automatic cover make sense here?
Because a cover only works if it gets used, and an automatic one gets used. A manual cover takes ten minutes of awkward physical effort that nobody feels like making at the end of a long day, so it stays folded in the equipment room. An automatic cover deploys at the press of a button in under two minutes.
The difference matters beyond convenience. Clients with automatic covers actually keep their pools covered when they should be covered, which is why everything downstream improves: heating costs, chemical consumption, cleaning time, evaporation losses.
Evaporation gives the point particular urgency. A medium-sized uncovered pool loses 4 to 6 millimetres of water a day in summer, which on a standard 8 by 4 metre pool works out at close to 5,000 litres a month. That figure sits comfortably alongside the research: a study of pools in the Balearic Islands, where the climate is closely comparable to the Algarve's, measured average evaporation of 4.4 litres per square metre per day (Hof and colleagues, Water, 2018).
Cover the pool and most of that stops. Research at California Polytechnic State University (Muleta, 2016) measured around 95 per cent less evaporation from a covered pool. That figure assumes the cover stays on, which brings the argument back to where it started. Water supply pressures across the region continue to increase, and we have written separately about what drought means for pool owners here.
Which covers do we install?
We fit covers made by PS Cover, and every cover in the range carries NF P90-308 certification. The range includes surface installations (TERRA) and submerged installations (PACIFIC), with a choice of PVC or polycarbonate slats, so the cover can suit the pool as it was built. The models and their specifications are set out on our automatic pool covers page.
What does NF P90-308 certification actually mean?
It means the cover has been independently tested against a formal safety standard rather than described as safe by whoever sells it. NF P90-308 requires that the cover supports the weight of an adult, 100 kilograms minimum, without collapsing or allowing submersion. It mandates UV resistance testing.
The standard is French and published by AFNOR, and a cover that carries the certification has passed the tests it sets.
Not every cover sold in Portugal has that certification, so anyone buying pool safety equipment here should ask for it. The physics of child safety does not change at the border. A cover meeting NF P90-308 offers verifiable protection, and one that does not is a convenience feature with uncertain safety characteristics. We install only certified systems.
How safe is a certified automatic cover?
A certified cover is a genuine physical barrier. Closed properly, it supports the weight of a child, or of an adult who walks onto it, because the standard includes load testing specifically to verify that. This is the primary reason to install one, particularly in a house with young children.
Drowning is a real risk to children in Portugal. The child safety association APSI recorded more than fifty children and teenagers drowned in the country between 2020 and 2023, as reported by Portugal Resident.
The barrier only exists when the cover is deployed, which is where automatic systems separate themselves decisively from manual ones. Clients use automatic covers consistently because using them costs nothing in effort. Manual covers, however good, tend to be left open or half-secured.
One clarification matters. A cover is not a substitute for supervision or for perimeter fencing. We recommend fencing even where a cover is fitted. A cover is one layer of protection and a fence is another. Together, they reduce risk far more than either does alone. For clients who want both, we supply removable child safety fences that meet NF P90-306, made by the French manufacturer Piscine Sécurité Enfants.
Who benefits most from an automatic cover?
Three kinds of owner, in our experience. Families with young children or pets, for whom the certified load-bearing capacity justifies the investment on its own. Holiday home owners who are away for long stretches and need the pool to look after itself. And anyone who heats a pool, for whom the energy saved usually makes the case without any help from the other two arguments.
The rental market adds a fourth kind of owner. Several of our rental property clients now list an automatic cover as a premium amenity, and it appears to resonate with guests travelling with small children.
If you heat your pool, the cover and the heat pump belong together. Evaporation is the largest single route by which a heated pool loses the warmth you have paid for, so an uncovered heated pool spends the night heating the sky.
If you swim only occasionally, do not heat the pool, and have no particular safety concern, a good manual cover may serve you perfectly well at lower cost. We would rather tell you that than sell you something you do not need.
Which pools should not have an automatic cover?
Overflow pools and pools with steps along the full length of one side should not have one. NF P90-308 excludes those configurations, so a cover fitted to them cannot be certified and cannot be counted as a barrier. Where a pool is built that way we say so before quoting and recommend a removable child safety fence from Piscine Sécurité Enfants instead.
Do you need one if your pool already has a manual cover?
It depends entirely on whether you use the manual one. If you deploy it every evening and after every swim, it is doing its job, and the automatic version buys you time and effort rather than any new function. Evaporation reduction, heat retention and debris exclusion are the same either way.
If the manual cover spends most of its life rolled up because deploying it is a nuisance, then switching changes your pool's running costs and cleanliness measurably. You will use the automatic one because it is easy to use. That is the whole of the argument.
If you would like us to look at your pool and tell you whether a cover makes sense for it, get in touch.