Clear the Gunk, Keep the Zen

Is your fountain starting to look more like a swamp than a relaxing water feature? Wondering if you can clean it without needing special tools or pro help?
In this post, you’ll learn how to clean your fountain step by step, from draining it safely to scrubbing out algae and keeping the pump in good shape.
By the end, you’ll know how to keep your fountain running smoothly and looking great all year long.
Key Points
- Regular cleaning is easy and keeps your fountain running longer. A simple rinse, scrub, and refill can stop algae and mineral buildup before it causes bigger problems.
- Pump care is just as important as basin cleaning. Most clogs or water flow issues start inside the pump, so learning how to open and clean it is a game-changer.
- Seasonal upkeep helps avoid damage and save money. Draining before winter and topping off water during summer can prevent cracks, overflows, and pump burnout.
How To Clean a Fountain
To clean a fountain the right way, start by turning off the power and draining all the water. Once it’s empty, remove any plants or decorations, scrub all the surfaces with mild soap, clean the fountain pump, and then refill it with clean water.
- Turn off and unplug the fountain.
- Drain the water completely.
- Remove debris, decorations, and plants.
- Scrub all surfaces with mild soap and a sponge.
- Disassemble and clean the pump with a brush.
- Rinse thoroughly and refill with fresh or distilled water.
- Turn the fountain back on to test operation.
Tools and Materials You’ll Need
Basic Supplies
- Bucket
- Mild dish soap
- Warm water
- Soft sponge or non-abrasive scrub brush
- Towels or cleaning rags
- Old toothbrush
Helpful Extras
- Distilled water
- Algae treatment or string algae buster
- Skimmer net or hand-held scoop
- Pressure wash attachment for large fountains
- Fountain cover for off-season protection
Detailed Step-By-Step Fountain Cleaning Guide
1. Turn Off the Fountain
Start by shutting off the power to your water fountain.
This protects the fountain pump and makes it safe to clean without risk of electric shock or damage. If your outdoor fountain runs on solar power, disconnect the battery or solar panel before you begin.
2. Drain the Water
Next, remove all the water from the fountain.
You can use a built-in drain, a submersible pump, or a simple bucket to scoop it out.
Make sure to remove all the water, including what’s in the pump area and bottom basin. Draining everything out gives you full access to clean surfaces and helps you avoid leftover algae or debris that can cause damage later on.
3. Remove Decorations and Debris
Take out any decorative rocks, aquatic plants, or small statues.
Set them aside so you can clean them separately.
Next, remove debris like leaves, sticks, or algae clumps using your hands or a skimmer net. Organic materials like these break down in the water and can feed algae or bacteria.
4. Scrub the Fountain’s Surfaces
Mix warm water with a small amount of mild dish soap.
Use a non-abrasive sponge or a soft brush to scrub the inside of the fountain, including any tiers, bowls, or walls. For larger stains or hard-to-reach spots, an old toothbrush works great.
Avoid harsh chemicals like bleach, especially on resin or copper fountains, since they can damage the surface.
Stick to gentle tools and cleaners to protect your water feature.
5. Clean the Fountain Pump
Take the pump out and open it carefully, following the manufacturer’s instructions.
Inside, you’ll find an impeller and intake area where dirt, algae, and mineral buildup love to hide.
Use a small brush or an old toothbrush to clean inside the pump housing and rinse with clean water. For tough buildup, soak parts in a vinegar and water mix to break it up.
A clean pump keeps your fountain water clear and prevents clogs that can overwork the motor.
6. Rinse and Refill Your Fountain
Once you’ve scrubbed everything and cleaned the pump, rinse the surfaces with fresh water.
Make sure to get rid of any leftover soap or dirt.
Then refill the fountain with clean water. Distilled water is the best choice if you want to prevent mineral buildup, especially in hard water areas.
7. Test the Flow
Plug the pump back in and turn the fountain on.
You should see a steady, smooth flow of water without sputtering or clogging.
If the water seems low, top it off. Fountain pumps need to stay fully submerged to work properly and avoid burning out.
How to Clean a Fountain Pump
Cleaning Steps
- Start by unplugging and removing the fountain pump.
- Open the pump housing carefully and take out the impeller.
- Use a small brush to clean dirt and algae from the blades and intake vents.
- Rinse the parts and soak them in vinegar if there’s mineral buildup from hard water.
- Once everything’s clean, put the pump back together and reinstall it in your fountain.
Why a Clean Pump Matters
A dirty pump is one of the top causes of water fountain problems. It reduces water flow, makes noise, and causes the motor to wear out faster. Keeping your pump clean is one of the best ways to maintain your fountain and prevent algae growth.
Preventing Algae, Sludge, and Smells
Smart Habits to Keep Algae Away
Algae growth is common in outdoor water fountains, especially in sunny, warm areas. But it’s manageable if you:
- Keep the water levels steady.
- Remove debris every few days.
- Use distilled water when possible.
- Shade your fountain to limit direct sunlight.
- Clean the fountain monthly.
Products and Natural Add-Ins
You can also use safe algaecides or water treatments. Some are plant-safe if you’re using aquatic plants in or around your water feature. Barley straw extract is another natural way to prevent algae growth without harming wildlife or pets.
Seasonal Fountain Maintenance
Spring
Uncover your fountain and inspect it for cracks or wear. Clean it thoroughly and check the pump before refilling. Top off with fresh distilled water and make sure everything works before running it daily.
Summer
Hot weather means faster evaporation and more algae. Refill the water often, clean the surfaces more regularly, and use algaecide if needed. Also, be sure to monitor water levels so the pump doesn’t run dry.
Fall
Leaves and falling debris can clog your pump or dirty the water fast. Skim daily, clean as needed, and start thinking about when to shut it down. If your area gets freezing temperatures, plan to winterize soon.
Winter
Drain the fountain and remove the pump. Store it indoors if possible. If your fountain isn’t built to handle cold, use a cover to protect it from ice and cracking during seasonal changes.
Tips to Make Fountain Cleaning Easier
- Use a skimmer net to remove debris between cleanings.
- Set calendar reminders for monthly maintenance.
- Store decorations and pump parts in labeled containers.
- Consider upgrading to a pump with a built-in filter.
- Use distilled water to reduce mineral deposits and algae feed.
How do you choose the best fountain pump?
FAQs About Cleaning Outdoor Fountains
Can I put vinegar in my outdoor fountain?
You can safely put white vinegar in your outdoor fountain to clean algae, grime, and mineral deposits. Use a 1:1 vinegar-to-water solution. After cleaning, rinse thoroughly and refill with clean water, especially if fish or plants are present, to avoid harmful acidity.
How to keep outdoor fountain water clean naturally?
Keep fountain water clean naturally by adding aquatic plants, running the fountain continuously, and limiting sun exposure. Plants absorb nutrients that fuel algae. Copper strips or pennies in the water also reduce algae growth without using chemicals.
How do you remove mineral deposits from a fountain?
Remove mineral deposits from a fountain by applying vinegar or lemon juice directly to the buildup, letting it sit for 10–15 minutes. Then, scrub with a soft brush. Rinse thoroughly after. For severe scaling, repeat or use a fountain-safe descaler.
Refresh Your Outdoors with Grass Roots Pond & Garden
Grass Roots Pond & Garden can install a custom outdoor fountain that you’ll love so much you won’t mind the occasional cleaning.
If your fountain’s looking a little green or you’re ready to upgrade your yard, fill out our contact form today or give us a call. We’d love to help you bring a little more peace and beauty to your outdoor space.