Maintaining a clean and safe swimming pool is essential for both aesthetic appeal and health reasons. While most pool owners are familiar with skimming the surface or vacuuming the pool floor, cleaning the pool sides is often overlooked or performed inconsistently. In this comprehensive guide, we’ll show you exactly how to clean pool sides effectively, what tools you’ll need, and some expert tips to keep your pool looking pristine.
Why Cleaning Pool Sides Is Important
Before diving into the cleaning process, it’s crucial to understand why pool side maintenance matters. The walls of your pool can accumulate a variety of contaminants over time, including:
- Algae growth
- Calcium deposits
- Dirt and debris
- Insect remnants
- Oily residues from sunscreen and body lotions
Leaving these unattended can lead to stubborn stains, slippery surfaces, and an increase in chemical demand. Moreover, unclean pool walls can damage the finish, particularly if you have a vinyl, fiberglass, or plaster-lined pool.
Regular wall cleaning helps maintain balanced water chemistry, protects your pool’s surface, and ensures a safer, more enjoyable swimming experience.
Essential Tools and Supplies for Cleaning Pool Sides
To clean your pool walls properly, invest in the following tools:
- Telescopic pole: A must-have for attaching brushes, vacuums, and other cleaning tools.
- Pool brush: Choose one that’s appropriate for your pool type:
- Stiff nylon brush for fiberglass or vinyl pools
- Steel or nylon brush (with hard bristles) for concrete or plaster pools
- Tile cleaner or pool wall cleaner: For removing scum lines and mineral deposits.
- Pumice stone or calcium deposit remover: For tackling tough calcium buildup.
- Skimmer or net: For removing loose debris before brushing.
- Water testing kit: Ensures you maintain correct chemical levels after cleaning.
Using the correct tools ensures you don’t damage your pool surface and effectively clean all types of buildup.
When to Clean Pool Sides
Daily to Weekly Maintenance
Even with a good filtration system and chemical balance, you should check and skim the pool walls weekly. If your pool is heavily used or exposed to elements like trees and rain, consider cleaning the walls more frequently.
Signs It’s Time to Clean
- You notice a scum line forming just above the waterline.
- The walls feel slippery or gritty to the touch.
- You spot dark patches or discoloration, which may indicate algae growth.
- There’s visible calcium scaling around the waterline or steps.
Addressing these early can prevent the need for more aggressive cleaning methods later.
How to Clean Pool Sides: Step-By-Step Process
Step 1: Test and Adjust Water Chemistry
Before cleaning, always test your pool water. Proper chemical levels are essential for effective cleaning and to prevent future issues. Make sure that:
- pH level is between 7.4 and 7.6
- Alkalinity is 80–120 ppm
- Chlorine is 1–3 ppm
- Calcium hardness is between 200–400 ppm
Balanced water prevents scale buildup and makes the cleaning process more effective.
Step 2: Skim the Pool and Brush Loose Debris
Begin by skimming the surface and scrubbing the upper walls to remove any floating debris. This prevents particles from settling back into the water after cleaning the pool sides.
Use a net or surface skimmer to remove leaves, bugs, and other floating contaminants. This will also help your filter operate more efficiently during and after the cleaning process.
Step 3: Use a Pool Brush to Clean the Walls
Attach the appropriate brush to your telescopic pole. Start from the top of the pool wall and work your way down, using slow, overlapping strokes.
For pools with plaster or concrete walls:
- Use a steel brush for tough algae or scale.
- Be careful not to scrub too aggressively; too much pressure can damage the surface.
For vinyl or fiberglass pools:
- Use a soft or nylon brush to avoid tearing or scratching.
Brush at least twice per week for best results.
Step 4: Treat and Remove Scum Lines
Scum lines along the waterline are typically caused by oils from sunscreen, body lotions, and organic materials.
To remove scum lines:
- Apply a waterline cleaner or a paste made from baking soda and water directly to the scum line.
- Allow it to sit for a few minutes before scrubbing with a brush or a waterline sponge.
- Rinse thoroughly with pool water to prevent chemical imbalance.
Alternatively, you can use:
- Vinegar and water solution (1:1) for a natural cleaning option.
- Commercial tile and scum line removers for maximum stain removal.
Step 5: Spot Clean with Calcium Removers or Pumice Stones
If you see white, chalky buildup just above the waterline or around the steps, it’s likely calcium deposits. Use the following methods:
- Manual removal: Gently rub the area with a pumice stone made specifically for pool use.
- Chemical application: Apply a calcium remover directly onto the deposits and scrub with a nylon brush.
- Preventative treatment: Keep a floating tile cleaner in the pool to continuously break down deposits and reduce future buildup.
Never use acid-based solutions without proper dilution and safety precautions, as they can damage your pool surface or cause skin irritation.
Step 6: Vacuum or Run the Filter After Brushing
After brushing the pool walls, any dislodged debris will settle at the bottom. Be sure to vacuum the pool thoroughly, using either a manual vacuum or an automatic pool cleaner. This ensures that particles are removed and your pool stays clean longer.
Run the filtration system for at least 8–12 hours after cleaning to help circulate and clean the water.
Step 7: Repeat Weekly
Establish a cleaning schedule and stick to it. Weekly brushing and spot cleaning will prevent the buildup of algae, calcium, and scum lines.
For best results, include other routine tasks such as:
- Checking chlorine and pH levels
- Emptying skimmer baskets
- Inspecting the filtration system
How to Clean Different Types of Pool Liners and Surfaces
Not all pool surfaces are created equal. Different materials require unique cleaning approaches.
Plaster or Concrete Pool Sides
Plaster is prone to developing calcium deposits and can harbor algae if not cared for properly.
Tips:
- Use a metal brush for heavy buildup.
- Do not use acidic cleaners unless they are designed for tile or plaster.
- Keep chlorine levels stable to prevent bleach marks.
Vinyl Pool Sides
Vinyl is more flexible and sensitive to abrasions. Use care when choosing your brush and cleaner.
Tips:
- Choose a nylon brush.
- Use non-abrasive, vinyl-safe cleaners.
- Avoid pressure scrubbing, which can tear the liner.
Fiberglass Pool Sides
Fiberglass is smooth and nonporous, making cleaning easier — but also more susceptible to scratches.
Tips:
- Only use soft-bristle brushes.
- Clean regularly with pH-neutral cleaners.
- Avoid steel wool or harsh chemicals that can dull the finish.
Common Mistakes to Avoid When Cleaning Pool Sides
Even with the right tools and approach, some common mistakes can hinder your results or damage your pool.
Using the Wrong Brush
Using a steel brush on a vinyl or fiberglass surface can cause scratches and wear down the finish, making it vulnerable to algae growth and stains.
Ignoring Water Balance
Before and after cleaning, always test your pool chemistry. Pool acid, chlorine, and other products can alter the water’s balance and irritate your skin or corrode equipment.
Letting Scum Line Buildup Go Too Far
If neglected, scum can harden and become nearly impossible to remove without costly treatments or replacements. Regular maintenance is key.
Using Household Cleaners
Some common cleaners like bleach, dish soap, and abrasive creams can disrupt pool chemistry or damage the finish. Always use pH-neutral, pool-safe products.
Not Rinsing Thoroughly After Cleaning
Chemical residue can affect your pool’s balance and irritate swimmers. Rinse off any cleaner used above the waterline with a clean cloth or hose after scrubbing.
Advanced Pool Wall Cleaning Techniques
Sometimes, standard brushing and scrubbing aren’t enough. Here are some advanced techniques for tackling stubborn stains or buildup.
Using pH Reducer or Muriatic Acid (Carefully)
For extreme calcium scale or mineral stains, you may need to use muriatic acid or pH reducer. However, proceed with caution:
- Dilute the acid properly — typically 1 part acid to 10 parts water.
- Apply with a brush or sponge directly to the stained area.
- Never pour the acid directly into the pool water.
- Rinse thoroughly afterward and rebalance your pool chemistry.
Always wear gloves, goggles, and protective clothing when using strong acids.
Dry Ice Cleaning (Professional Level)
This is an advanced technique used by professional pool technicians. It involves using pressurized pellets of solid carbon dioxide to blast away calcium, algae, and debris without leaving any residue.
Benefits:
- No water or chemicals required
- Environmentally friendly
- Safe for all types of pool surfaces
Pressure Washing
This method can be dangerous if done improperly and is not recommended unless performed by a professional.
Preventive Tips to Keep Pool Walls Clean
Maintain Perfect Water Chemistry
A balanced pool prevents staining, scaling, and algae growth. Routine testing and adjustment will save time and money in the long run.
Install a Tile Cleaner or Waterline Brush
These are brushes or rings that float around the waterline, gently scrubbing scum and debris before it hardens. They’re an efficient way to reduce the effort required during your regular cleaning.
Keep Debris Out with Barriers
Installing a pool cover when the pool isn’t in use can reduce accumulation of leaves, dirt, and oil on the surface and walls. Consider trimming nearby trees or installing a fence to limit organic debris.
Rinse Off Before Swimming
Encourage swimmers to rinse off before entering the pool to remove suntan lotions, oils, and dirt that contribute to scum line buildup.
Final Thoughts: Consistency is Key
Cleaning your pool sides doesn’t have to be a daunting task if you follow a regular maintenance routine. With the right tools, techniques, and a little patience, your pool can look like it was professionally cleaned every week.
Remember:
- Brush pool sides weekly as part of your routine.
- Use the correct brush for your pool type.
- Test and maintain proper chemical levels.
- Never overlook preventive maintenance.
By implementing the steps outlined in this guide, you’ll enjoy a sparkling clean pool that’s safer to swim in, more visually appealing, and less costly to maintain over time.
Maintaining a clean pool isn’t just about aesthetics — it’s about preserving the value of your investment, ensuring the longevity of your equipment, and protecting the health of those who enjoy it. Whether you’re owning a plaster, vinyl, or fiberglass pool, with a bit of effort, your pool sides will remain in excellent condition year after year.
So grab your brush, check your water chemistry, and give your pool the care it deserves — you’ll be rewarded with a clear, inviting swim every time.
What tools do I need to clean my pool sides effectively?
To clean your pool sides effectively, you’ll need a few essential tools. Start with a pool brush—choose one with nylon bristles for vinyl or fiberglass pools and stainless steel bristles for concrete pools. A telescopic pole will allow you to reach all areas of the pool easily. A skimmer net helps remove floating debris before brushing. Additionally, a pool vacuum can pick up loosened dirt from the bottom after brushing.
You may also need a pool tile cleaner or a gentle household cleaner like a mixture of baking soda and water, depending on the type of stains on your tiles. A soft cloth or sponge is useful for wiping down surfaces after applying cleaner. Last but not least, make sure you have the appropriate pool chemicals to balance the water, as this helps prevent future buildup on the pool sides.
How often should I clean the sides of my pool?
Ideally, you should clean the sides of your pool at least once a week as part of routine maintenance. Regular brushing prevents the buildup of algae, dirt, and mineral deposits, especially in areas where water circulation is limited. Skipping cleanings for long periods can lead to stubborn stains and slip hazards around the edges of the pool.
If your pool is heavily used or located in an area exposed to trees, wind, or rain, you may need to clean the sides more frequently—perhaps two or three times a week. Monitoring the water line, where oils and debris tend to accumulate, is especially important. Consistency in cleaning not only improves aesthetics but also prolongs the life of your pool surfaces.
How do I remove waterline stains from the pool sides?
Waterline stains, often caused by oils, lotions, and debris, can be removed using a pool-specific tile cleaner applied directly along the affected line. Use a soft cloth, sponge, or a non-abrasive scrub brush to work the cleaner into the stain. Rinse thoroughly with clean water after scrubbing to avoid leaving any residue that could affect water balance.
For tougher stains, you can use a paste made from baking soda and water, or try a diluted trisodium phosphate (TSP) solution. Apply the mixture and let it sit for a few minutes before scrubbing. Never use abrasive tools like metal scrapers, as they can damage your pool’s surface. If the stain persists, consider consulting a professional for safe chemical treatment options.
Can I use household cleaners to clean the pool sides?
In certain cases, you can use household cleaners to clean the sides of your pool, especially for spot cleaning tiles above the waterline. Products like baking soda, vinegar, and mild dish soap are gentle, effective, and generally safe on most pool surfaces. Combining baking soda with water to form a paste, or using vinegar as a degreaser, can help remove light stains and scum without harming the surrounding materials.
However, it’s important to avoid highly acidic or abrasive cleaners like bleach, drain openers, or oven cleaners, as they can damage your pool lining or upset the pool water’s chemical balance. Always rinse the cleaned areas thoroughly to eliminate any cleaner residue that could enter the pool water. When in doubt, consult a pool care professional or use cleaners specifically formulated for pool use to ensure the safety of your equipment and swimmers.
What is the best way to brush the sides of an above-ground pool?
The best way to brush the sides of an above-ground pool starts by selecting a brush with nylon bristles, as steel bristles could scratch the vinyl liner. Attach the brush to a telescopic pole for better reach, and begin brushing the walls from top to bottom in even, overlapping strokes. Brushing should be done before vacuuming to loosen and suspend debris in the water, which the filter or vacuum can then remove.
It’s essential to maintain a steady rhythm and cover all areas, paying attention to regions with visible algae or staining. Brushing weekly helps prevent stubborn buildup and keeps the water chemistry stable. When brushing is complete, run the pool filter for several hours to circulate and clean the disturbed particles from the water.
How do I properly clean the tile surface around the top edge of my pool?
To clean the tile surface around the top edge of your pool, first use a chemical applicator brush or a sponge to apply a tile-safe pool cleaner directly to the stained or scummy areas. Allow the cleaner to sit for several minutes to break down oils and calcium deposits. Wipe the surface with a clean, soft cloth or tile brush, using circular motions to lift off the grime.
Avoid scrubbing too hard, as excessive pressure might damage the protective glaze on tiles or push dirt into the adjacent grout lines. Rinse your tools and the cleaned surface frequently with fresh water. If your tile buildup is excessive, consider using a small amount of muriatic acid diluted in water, but only with protective gear and proper ventilation. Always follow label instructions or consult a pool expert for safe application.
What should I do to keep pool walls free of algae?
To keep pool walls free of algae, start by maintaining proper water chemistry. Regularly test and balance the pH, chlorine, and alkalinity levels to create an environment that discourages algae growth. Algae thrives in imbalanced water, so consistent monitoring and adjustment are key. Shocking the pool every couple of weeks—especially after heavy use or rain—can also prevent and kill existing algae spores.
Physical maintenance is equally important. Brush the pool walls and tile line weekly using the appropriate brush for your pool surface. This removes any early signs of algae before they establish themselves. Circulating the water by running the pump regularly also reduces stagnant areas where algae can form. Consider using an algaecide as an added preventive treatment to maintain clean walls and a sparkling pool.