How to Clean a Swimming Pool in Dubai: A Step-by-Step Guide

To clean a swimming pool, work from the top down: skim floating debris off the surface, empty the skimmer and pump baskets, brush the walls, steps and floor, vacuum up what settles, clean or backwash the filter, and finish by testing and balancing the water. Done once a week, with quick skimming in between, this routine keeps most villa pools clear.

Dubai adds a few extra jobs. Dust and sand blow in after windy days, heat uses up chlorine quickly, and evaporation leaves minerals behind as white scale on the tiles. This guide covers the standard routine first, then each of these local problems, and ends with when to call a professional.

What you need before you start

You need a telescopic pole, a flat leaf skimmer net, a nylon pool brush, a vacuum head and hose (or a robotic cleaner), a water test kit, and gloves and safety glasses. Keep them together so you aren't hunting for equipment while debris floats.

Choose a nylon brush for tiles, plaster and most finishes. Stainless steel brushes can scratch tiles and vinyl, so use them only on bare concrete or stubborn algae on plaster. For testing, a liquid DPD kit or test strips both work, and a notebook for your readings helps.

Also find your filter's model number and manual. Pressure limits, backwash times and cleaning steps differ between brands, and the manual is the final word for your equipment.

Skim the surface and empty the baskets

Start with skimming, because floating leaves, insects and dust sink within hours. Once they reach the floor they are harder to remove, and they start to stain the surface and use up chlorine.

1. Skim the whole surface with the flat net, working with the wind so debris collects at one end.
2. Switch the pump off before you open anything in the circulation system.
3. Lift out the skimmer baskets at the pool edge and empty them.
4. Open the pump's strainer pot, empty its basket and check the lid seal for sand or hair before you close it.
5. Switch the pump back on and check that water is flowing strongly through the skimmers.

Full baskets restrict the water flow, so the pump works harder and the filter cleans less water. In summer, empty them every few days.

Brush the walls, steps and floor

Brushing loosens the thin film of dirt, dust and early algae that a vacuum alone can't lift. The loosened dirt either goes to the filter or settles on the floor for vacuuming.

Brush from the waterline down towards the main drain, overlapping your strokes. Give extra attention to the places where water moves least: corners, steps, behind ladders, and areas away from the return jets. Algae appears in these spots first.

If you see green patches or the water has turned cloudy green, brushing alone won't fix it. That needs a shock treatment and heavier filtering, which our guide to fixing green pool water explains step by step.

How to vacuum a swimming pool

Vacuuming removes the dirt and sand that sink to the floor. Wait about an hour after brushing so the loosened debris can settle, then vacuum slowly. Moving fast stirs the dirt back into the water.

Manual vacuuming, step by step

1. Attach the vacuum head to the pole and connect one end of the hose to the head.
2. Lower the head to the floor and feed the hose into the pool, or hold its open end over a return jet, until the hose fills with water and no more bubbles come out. Air in the hose can make the pump lose suction.
3. Connect the full hose to the skimmer's suction port or vacuum plate, keeping the end under water as you do it.
4. Move the head in slow, overlapping lines across the floor, like mowing a lawn.
5. Watch the filter pressure gauge. If it climbs sharply during vacuuming, stop and clean the filter or empty the baskets before you continue.

Manual or robotic cleaner?

A robotic cleaner runs on its own power, drives itself around the pool and collects debris in its own filter bag or canister, so it doesn't load your main filter. A manual vacuum is cheaper and gives you more control, but it takes time and effort every week.

Many pool owners use both: the robot handles the weekly floor clean, and a manual vacuum deals with steps and the heavy sand after a storm.

How to clean a pool filter

The filter is what keeps the water clear between cleans, so a dirty filter shows up quickly as cloudy water. The pressure gauge on top of the filter tells you when it needs cleaning.

Write down the pressure reading when the filter is freshly cleaned. This is your clean starting pressure. As the filter traps dirt, the reading rises. Pentair's cartridge filter cleaning guide, for example, says to clean when the gauge reads about 10 psi above that starting figure or when the flow drops noticeably. Other manuals use a similar rise of 8 to 10 psi, so check yours. If you have a variable-speed pump, always read the gauge at the same pump speed, because the pressure changes with speed.

How to clean a pool filter cartridge

1. Switch the pump off, and turn off any timer or automation so it can't restart while you work.
2. Open the air relief valve on top of the filter and wait until the gauge reads zero. Never open a filter that is still under pressure.
3. Open the drain plug, let the housing empty, then remove the lid or clamp and lift out the cartridge.
4. Spray the cartridge inside and out with a garden hose, working from top to bottom and between each pleat. Do not use a pressure washer, because it can tear the fabric.
5. Clean the O-ring and its groove, check it for cracks, and refit everything.
6. Open the air relief valve, start the pump, and close the valve when a steady stream of water comes out.
7. Note the new clean starting pressure.

Sunscreen, body oils and fine dust can clog the fabric so hosing alone stops working. If the starting pressure stays high after a thorough hose clean, soak the cartridge in a cleaner made for pool filter cartridges and follow its label. Cartridges also wear out, so a high reading after a proper clean usually means it is time for a new one.

How to clean a sand filter on a swimming pool

A sand filter is cleaned by backwashing, which means running water backwards through the sand to flush the trapped dirt out to the drain. You do this with the multiport valve on top of the filter.

1. Switch the pump off. Always turn it off before you move the valve handle, because changing position while water is flowing can damage the valve and pipework.
2. Set the valve to Backwash and make sure the waste line is open.
3. Start the pump and watch the sight glass on the valve, or the water leaving the waste pipe. It runs dirty at first.
4. Keep going until the water runs clear, which usually takes a few minutes. Then switch the pump off.
5. Set the valve to Rinse and run the pump for about 30 seconds to a minute. This resettles the sand bed so dirty water isn't pushed back into the pool.
6. Switch the pump off, set the valve back to Filter, and restart.

Backwashing sends pool water to the drain, so top the pool up afterwards to keep the level at the middle of the skimmer opening. That water comes off your DEWA bill, so backwash when the pressure rises rather than on a fixed timetable. If the water stays cloudy even after regular backwashing, the sand may be clumped or worn out, which is a job for a technician.

How to remove sand from a swimming pool after a sandstorm

After a dust or sandstorm, the pool usually has a layer of fine sand on the floor and a film of dust on the surface. The fine particles are the problem: a sand filter can let some of them pass straight back into the pool, and they quickly clog a cartridge.

1. Skim the surface to remove floating dust and debris, then empty the skimmer and pump baskets, which fill quickly after a storm.
2. Turn off fountains and water features, and let the sand settle on the floor, ideally overnight.
3. Vacuum slowly so the sand doesn't lift back into the water.
4. If you have a sand filter with a multiport valve, set it to Waste while vacuuming. This sends the water and sand straight to the drain without passing through the filter, so the fine particles can't return to the pool. Top the water up afterwards.
5. Clean or backwash the filter, then test the water. Dust brings in organic matter that uses up chlorine.

Cartridge filters usually have no Waste setting, so vacuum in short sessions and hose the cartridge clean between them. A robotic cleaner with a fine filter bag also helps, because it keeps the sand out of your main filter.

Planting and screening around the pool can reduce the leaf litter that reaches the water. Our pool landscaping ideas cover planting and hardscape choices for pool areas.

How to clean swimming pool tiles and remove calcium scale

The white or grey crust that forms along the waterline is usually calcium scale. It forms when dissolved minerals come out of the water and stick to surfaces. Dubai's heat makes this more likely: warm water holds less dissolved calcium, and evaporation leaves minerals behind while top-up water adds more.

According to test-kit maker Taylor Technologies, industry standards put ideal calcium hardness for pools at 200 to 400 ppm. Water with too much calcium, or with a pH that is too high, tends to form scale on tiles, inside pipes and in the filter.

Identify the type of scale

There are two common types. Calcium carbonate scale is white, chalky and flaky, and it is fairly easy to remove. Calcium silicate scale is greyer, harder and looks glassy. It builds slowly and is much harder to shift.

How to remove calcium from swimming pool tiles

1. Lower the water slightly, or work just at the waterline, so you can reach the scale.
2. Scrub light scale with a nylon brush and a tile cleaner made for pool scale, following the label.
3. For stubborn scale on ceramic or porcelain tiles, rub gently with a wet pumice stone. Keep it wet and test a small hidden area first. Do not use pumice on glass mosaic tiles, as it can scratch them, and check your tile manufacturer's cleaning advice first.
4. Rinse the area and retest the water, since tile cleaners can shift the pH.

Avoid using strong acids on tiles yourself. Acid can etch grout, natural stone and some tile glazes, and it is dangerous to handle. Heavy calcium silicate scale is a job for a professional with the right equipment.

For everyday tile cleaning, brush the waterline with a soft brush once a week. This removes sunscreen and body oils before they collect dust and form a dark band.

How to stop scale coming back

Prevention is mostly water balance. Keep the pH in range, test calcium hardness monthly, and keep the water level topped up. If calcium hardness climbs well above the recommended range, Taylor Technologies notes that partly draining and refilling with lower-hardness water is one way to bring it down, while lowering pH and alkalinity is the other option when draining isn't practical.

How to maintain pool chemicals safely

Clean surfaces don't make safe water. Chlorine kills germs, and pH controls how well the chlorine works, so test both often and adjust them as needed.

The US Centers for Disease Control and Prevention (CDC) recommends the pH and chlorine levels below for home pools, and advises testing at least twice a day, more often during heavy use. The calcium hardness range is the industry range cited earlier from Taylor Technologies, not a CDC figure.

Free chlorine is the chlorine still available to kill germs. Stabiliser (cyanuric acid) is a chemical that slows chlorine loss in sunlight.

The CDC notes that a liquid DPD test kit gives more accurate results than test strips. Whichever you use, follow the kit's instructions exactly and write down every reading, so you can spot a trend before the water turns.

Adding chemicals

Always add chemicals to water, never water to chemicals. Virginia's health department pool chemical safety guidance warns that adding water to chemicals can cause a dangerous reaction. It also says to mix chemicals only as the label directs, wear the protective equipment listed on the label, and never combine old and new chemicals, even of the same type.

Never mix chlorine products and acids. Add one chemical, let the pump circulate it, and retest before adding another.

Storing chemicals in Dubai's heat

Storage is a real risk in a Dubai summer. The CDC's pool chemical safety guidance says to store pool chemicals below 35°C, dry, and out of direct sunlight. Outdoor temperatures here regularly pass that: the National Center of Meteorology forecast average July 2026 temperatures of around 40 to 44°C (39.7 to 43.8°C) across the UAE, as reported by Emirates 24|7. A metal pump-room cabinet or a garden shed in full sun gets hotter still.

• Keep chemicals in a shaded, ventilated and preferably air-conditioned space, not in direct sun.
• Store each product in its original, labelled container and keep incompatible products apart.
• Never store liquids above dry chemicals, in case of a leak.
• Keep everything locked away from children and pets.
• Buy only what you will use within a season, since chemicals can degrade in heat.

A weekly pool cleaning routine for Dubai villas

This table shows how the steps above fit into one routine. In the cooler months you can stretch some tasks out. In summer and after storms, expect to do more.

For a fuller list that covers equipment checks and seasonal jobs, see our pool maintenance checklist for Dubai.

When to call a professional

Most homeowners can manage skimming, brushing, vacuuming and testing. Some problems need the right tools or experience, and getting them wrong can damage equipment or the pool finish.

• The water stays cloudy or green after you have balanced the chemicals and cleaned the filter.
• Filter pressure stays high straight after cleaning, or the sand needs replacing.
• Hard, glassy scale that won't come off with gentle methods, or scale on glass mosaic tiles.
• Leaks, cracked tiles, noisy pumps or a pool that loses water faster than evaporation would explain.
• You are not comfortable handling chemicals, or you have nowhere cool and safe to store them.

If you'd rather hand over the routine, NAM Landscaping offers pool cleaning in Dubai, with weekly maintenance plans from AED 350 per month (an indicative starting price, confirmed in writing after a free site visit) that include routine chemicals. For leaks, pumps and other faults, see our pool repair service.