Maintenance Requirements For A Concrete Pool

Concrete pools are one of the most durable, versatile, and long-lasting pool styles available in Australia. They offer endless design possibilities, hold up well in harsh climates, and create a premium look that enhances any backyard. But like any investment, maintaining a concrete pool properly is essential to keeping it safe, functional, and looking its best long-term.

If you’re planning to build a concrete pool—or already own one—this guide covers everything you need to know about ongoing maintenance, water care, and upkeep.

Why Concrete Pools Require Specific Maintenance

Concrete pools are incredibly strong, but they’re also porous, meaning they can absorb water and chemicals. This naturally leads to more maintenance than fibreglass pools because:

• The surface requires periodic resurfacing
• The water chemistry needs consistent balancing
• The pool must be brushed regularly to prevent algae
• Concrete can be more prone to staining if neglected

However, with the right care routine and equipment, maintaining a concrete pool becomes straightforward and predictable.

1. Regular Water Testing and Balancing

Keeping your pool’s water chemistry balanced is the most important part of concrete pool maintenance. Unbalanced water can cause:

• Etching and corrosion in the concrete
• Algae blooms
• Staining
• Skin and eye irritation
• Damage to pool equipment

Key water levels to maintain

You should test and adjust the following at least once a week:

• pH: 7.2–7.6
• Total Alkalinity: 80–120 ppm
• Calcium Hardness: 200–400 ppm
• Chlorine: 1–3 ppm
• Stabiliser (CYA): 30–50 ppm

Concrete surfaces rely on correct calcium levels to prevent erosion. Low calcium causes the water to “pull” calcium from the concrete, leading to roughness. High calcium can cause scaling.

Professional water testing

Most pool shops offer free computerised water tests. A monthly professional check is recommended, especially during summer when the pool is used more often.

2. Weekly Brushing and Skimming

Algae attaches more easily to concrete than other pool surfaces, so regular brushing is essential.

Brushing

Brush the entire pool surface—walls, steps, and floor—once or twice per week using a stiff, concrete-safe brush.

Brushing helps prevent:

• Algae buildup
• Calcium deposits
• Surface staining
• Roughness over time

Skimming

Use a leaf skimmer to remove leaves, insects, and debris floating on the surface daily or every few days, depending on how leafy your yard is.

Keeping debris out of the water helps maintain chemistry and reduces strain on the filtration system.

3. Vacuuming or Using a Robotic Cleaner

Vacuuming removes dirt and fine particles that settle on the bottom of the pool.

You have three main options:

Manual vacuum

• Most affordable
• Requires 20–30 minutes weekly
• Effective but labour-intensive

Automatic suction cleaner

• Runs through the skimmer
• Good for routine cleaning
• Can struggle with stairs and tight corners

Robotic vacuum (recommended)

• Most efficient
• Cleans floors and walls
• Uses less energy
• Great for busy homeowners

For concrete pools, a robotic cleaner saves significant time and helps keep surfaces spotless.

4. Maintaining Your Filtration System

Your filter and pump are the heart of your pool’s maintenance system. If they aren’t functioning well, the water won’t stay clean.

Pump run time

Most concrete pools require the pump to run 6–10 hours per day, depending on:

• Pool size
• Season (more in summer)
• Pump efficiency

Filter cleaning

The filter removes dirt, oils, and contaminants. Maintenance depends on the filter type:

Sand filter

• Backwash every 3–4 weeks
• Replace sand every 3–5 years

Cartridge filter

• Hose off every 2–4 weeks
• Replace cartridge every 2–3 years

Glass media filter

• Backwash every 4–6 weeks
• Media lasts up to 10 years

A well-maintained filter prevents cloudy water, algae, and unnecessary chemical use.

5. Shock Treatment and Algae Prevention

Even well-maintained pools need occasional “shocking” to kill bacteria and oxidise organic matter.

When to shock your concrete pool

• After heavy rain
• After parties or high usage
• When water looks cloudy
• If you smell strong chlorine (a sign of chloramine buildup)
• After long periods without swimming

Shock treatment keeps water sanitised and prevents algae growth—an especially important factor for porous concrete surfaces.

6. Maintaining Pool Equipment

Concrete pools typically include:

• Pump
• Filter
• Chlorinator (salt or mineral)
• Skimmer box
• Heater (solar, gas, or electric)
• Lights
• Valves and plumbing

Routine equipment maintenance

• Check for leaks monthly
• Inspect O-rings and seals
• Ensure lights are watertight
• Clean chlorinator cells (if salt/mineral) every 4–6 weeks
• Test heater efficiency annually

Staying on top of equipment maintenance reduces long-term repair costs and ensures your pool operates efficiently.

7. Surface Maintenance and Resurfacing

Concrete pools require resurfacing every 10–15 years, depending on the finish, water chemistry, and maintenance routine.

Common surface finishes

• Pebblecrete
• Render
• Quartz
• Tiled interiors

Signs your pool may need resurfacing

• Rough patches
• Stains that won’t lift
• Visible cracks
• Pebble loss
• Discolouration
• Difficulty maintaining water balance

Resurfacing not only freshens the pool’s appearance but also protects long-term structural integrity.

8. Managing Stains and Discolouration

Concrete pools can develop stains caused by:

• Leaves and organic debris
• Metals in the water
• Rust from fixtures
• Algae growth
• Poor chemistry

Prevention tips

• Keep water balanced
• Remove leaves quickly
• Maintain pH and alkalinity
• Brush weekly
• Use metal removers if needed\

A professional stain treatment may be required for stubborn discolouration.

9. Seasonal Concrete Pool Maintenance

Summer

• Increase pump runtime
• Test water every 2–3 days
• Watch chlorine levels closely
• Clean filters more frequently

Autumn

• Scoop excess leaves
• Maintain brushing to prevent stains

Winter

• Reduce pump hours
• Keep chlorine levels stable
• Use a pool cover if preferred
• Continue brushing fortnightly

Concrete pools benefit from maintenance year-round—neglecting winter care often leads to spring problems.

10. Professional Servicing and Inspections

While many homeowners handle basic pool care themselves, periodic professional servicing is recommended.

A technician can:

• Deep clean filters
• Identify leaks early
• Perform equipment diagnostics
• Adjust complex water chemistry
• Inspect structural condition

Annual inspections help extend the lifespan of your concrete pool and ensure you catch problems before they become costly repairs.

Conclusion

Concrete pools offer unmatched durability, flexibility, and a custom-designed aesthetic that enhances your home for decades. While they do require a consistent maintenance routine, proper care isn’t as overwhelming as it may seem—especially with the right equipment and habits in place.

By balancing water chemistry, cleaning regularly, maintaining filtration, and keeping an eye on your surfaces and equipment, you’ll enjoy crystal-clear water and a beautifully maintained pool year-round.