Dam Stop Leak® Professional
Price range: $115.80 through $495.80
- Fast, simple application
- Long lasting fix to dam wall
- Plugs leaks in both clay and earth
- Calculator - how much do I need?
- How to videos
Product Description
Dam Stop Leak Professional is a sealer specialised to stop water leakage in clay and earth based dams or ponds. Able to be applied directly to the water Dam Stop Leak Professional works quickly, is cost-effective and provides long lasting results.
How To Use
Spread the required amount over the water’s surface with an appropriate applicator or by hand. Optimal results are achieved when the water temperature is above 5°C and under light wind conditions.
Click here for more detail on using Dam Stop Leak® Professional.

delivery

Australian
before 12pm
Where can Dam Stop Leak® be used?
How much to use
How to apply the product
What results to expect
Dam Stop Leak® Professional: Effective Dam and Pond Leak Repair Solution
Dam Stop Leak® Professional offers a swift and efficient solution for sealing leaks in clay and earth-based dams and ponds. This granulate polymer product effectively plugs leaks without the need to drain your water, making it the ideal choice for preserving your valuable water resources.
Key Features:
- Coverage:
1kg treats 17m²
5kg treats 83m²
15kg treats 250m²
18kg treats 300m²
- Quick and Effective: Say goodbye to leaks with Dam Stop Leak® Professional, which can be applied directly to the water
- Efficient Leak Blockage: This granulate polymer is drawn into cracks and holes, expanding to seal leaks, regardless of the leak’s exact location.
- Ideal for Earth or Clay Dams: Dam Stop Leak® Professional is designed for earth or clay-based dams that have previously held water.
- Non-Toxic and Environmentally Friendly: Our product is 99% insoluble, free of additives that create a flocculant effect, and doesn’t contain potassium, making it the safest sealant on the market.
- Cost-Effective: Save time and money by avoiding the need for draining, excavation, or other costly methods.
- Versatile Application: Use Dam Stop Leak® Professional on full or partially full dams, apply it directly to known leakage areas using correct product to dimension ratio, or generally apply it when the leak location is unknown.
- Long-Lasting Effect: Once applied, the polymers become part of the dam structure, providing a durable solution that lasts for years.
For best results, use on existing dams that have held water in the past. In newly constructed dams, consult your dam construction contractor for guidance on addressing minor leaks or major construction flaws. Dam Stop Leak is not designed for use in concrete, tin, or lined tanks and dams. Your mileage may vary in these situations
- Coverage:
Dam Stop Leak® Professional Application Guide
Explore the comprehensive application guide for Dam Stop Leak® Professional. Discover where to use it, the recommended quantity, how to apply, and application rates for optimal results.
Where to Use: Dam Stop Leak® Professional is suitable for various applications, including:
Clay/Earth Based Watering Dams, Ponds:
- Quantity: 60 grams of Dam Stop Leak® Professional per m2 of water surface area.
- How to Apply: Spread over the water’s surface with an appropriate applicator or by hand.
- Application Rates: Choose between a targeted application and treating the entire water surface, as needed.Treating the entire water body: Calculate the surface area of your water body (Length (m) X Width (m) = m2)1kg treats 17m²
5kg treats 83m²
15kg treats 250m²
18kg treats 300m²Targeted Application: When the location of the leak is known, it is important to note that this may not be the location of where the water is being drawn from. In this instance, Dam Stop Leak® Professional should be applied 10m either side of leak location, and out to the deepest point of the waterbody.
For Best Results:
- Ensure water is present in the area designated for treatment.
- Apply when the water temperature is above 5°C.
- Optimal results are achieved under light wind conditions.
- Clear the area of excessive aquatic vegetation and algae for an effective application.
Important Notes:
- Dam Stop Leak® Professional is designed to assist in repairing leaking dams and should not be used as a substitute for major constructional flaws or situations requiring a liner.
- While it may slow leaks in concrete, tin, or lined tanks and dams when the leak is at the base, it is not specifically designed for this purpose.
Follow this application guide for Dam Stop Leak® Professional to effectively address leaks in your dams and ponds, ensuring optimal results in various scenarios.

Explore the versatile applications of Dam Stop Leak® Professional and discover the key targets where this innovative solution can be effectively employed. From irrigation to stock watering, this powerful product offers efficient and eco-friendly solutions to various water-related challenges.
Targets for Dam Stop Leak® Professional:
- Clay or earth lined dams and ponds
- Dams and ponds that have held water in the past
- Dams and ponds with minor leaks, cracks and seepage
Best Practices:
To maximise the effectiveness of Dam Stop Leak® Professional, remember to:
- Ensure that water is present in the designated area for treatment.
- Apply when the water temperature is above 5°C.
- Opt for application during light wind conditions.
- Clear the area of excessive aquatic vegetation and algae for optimal results.
Choose Dam Stop Leak® Professional for an eco-friendly, cost-effective, and versatile solution to your water conservation needs.
• Download Dam Stop Leak® Professional Product Brochure PDF
• Download Dam Stop Leak® Professional SDS PDF
• Download Sodium vs Potassium Dam Stop Leak® Literature Review PDF
• Download Dam Stop Leak® Trademark PDFSafe For
Description
Dam Stop Leak® Professional: Effective Dam and Pond Leak Repair Solution
Dam Stop Leak® Professional offers a swift and efficient solution for sealing leaks in clay and earth-based dams and ponds. This granulate polymer product effectively plugs leaks without the need to drain your water, making it the ideal choice for preserving your valuable water resources.
Key Features:
- Coverage:
1kg treats 17m²
5kg treats 83m²
15kg treats 250m²
18kg treats 300m²
- Quick and Effective: Say goodbye to leaks with Dam Stop Leak® Professional, which can be applied directly to the water
- Efficient Leak Blockage: This granulate polymer is drawn into cracks and holes, expanding to seal leaks, regardless of the leak’s exact location.
- Ideal for Earth or Clay Dams: Dam Stop Leak® Professional is designed for earth or clay-based dams that have previously held water.
- Non-Toxic and Environmentally Friendly: Our product is 99% insoluble, free of additives that create a flocculant effect, and doesn’t contain potassium, making it the safest sealant on the market.
- Cost-Effective: Save time and money by avoiding the need for draining, excavation, or other costly methods.
- Versatile Application: Use Dam Stop Leak® Professional on full or partially full dams, apply it directly to known leakage areas using correct product to dimension ratio, or generally apply it when the leak location is unknown.
- Long-Lasting Effect: Once applied, the polymers become part of the dam structure, providing a durable solution that lasts for years.
For best results, use on existing dams that have held water in the past. In newly constructed dams, consult your dam construction contractor for guidance on addressing minor leaks or major construction flaws. Dam Stop Leak is not designed for use in concrete, tin, or lined tanks and dams. Your mileage may vary in these situations
- Coverage:
How To Use
Dam Stop Leak® Professional Application Guide
Explore the comprehensive application guide for Dam Stop Leak® Professional. Discover where to use it, the recommended quantity, how to apply, and application rates for optimal results.
Where to Use: Dam Stop Leak® Professional is suitable for various applications, including:
Clay/Earth Based Watering Dams, Ponds:
- Quantity: 60 grams of Dam Stop Leak® Professional per m2 of water surface area.
- How to Apply: Spread over the water’s surface with an appropriate applicator or by hand.
- Application Rates: Choose between a targeted application and treating the entire water surface, as needed.Treating the entire water body: Calculate the surface area of your water body (Length (m) X Width (m) = m2)1kg treats 17m²
5kg treats 83m²
15kg treats 250m²
18kg treats 300m²Targeted Application: When the location of the leak is known, it is important to note that this may not be the location of where the water is being drawn from. In this instance, Dam Stop Leak® Professional should be applied 10m either side of leak location, and out to the deepest point of the waterbody.
For Best Results:
- Ensure water is present in the area designated for treatment.
- Apply when the water temperature is above 5°C.
- Optimal results are achieved under light wind conditions.
- Clear the area of excessive aquatic vegetation and algae for an effective application.
Important Notes:
- Dam Stop Leak® Professional is designed to assist in repairing leaking dams and should not be used as a substitute for major constructional flaws or situations requiring a liner.
- While it may slow leaks in concrete, tin, or lined tanks and dams when the leak is at the base, it is not specifically designed for this purpose.
Follow this application guide for Dam Stop Leak® Professional to effectively address leaks in your dams and ponds, ensuring optimal results in various scenarios.

Targets
Explore the versatile applications of Dam Stop Leak® Professional and discover the key targets where this innovative solution can be effectively employed. From irrigation to stock watering, this powerful product offers efficient and eco-friendly solutions to various water-related challenges.
Targets for Dam Stop Leak® Professional:
- Clay or earth lined dams and ponds
- Dams and ponds that have held water in the past
- Dams and ponds with minor leaks, cracks and seepage
Best Practices:
To maximise the effectiveness of Dam Stop Leak® Professional, remember to:
- Ensure that water is present in the designated area for treatment.
- Apply when the water temperature is above 5°C.
- Opt for application during light wind conditions.
- Clear the area of excessive aquatic vegetation and algae for optimal results.
Choose Dam Stop Leak® Professional for an eco-friendly, cost-effective, and versatile solution to your water conservation needs.
FAQ
Should I turn my pump off during application?
Yes, it is recommended to turn off pumps and/or filters for at least 24 hours after applying Dam Stop Leak® Professional. As the polymer settles to the bottom of your pond or dam, it will gradually seep into the pond walls. Be sure to check for any residual material before reactivating the pumps.
Is it safe to use around fish?
Absolutely, Dam Stop Leak® is completely safe for fish, being a non-toxic product. However, it’s important to monitor your fish until the product sinks to the bottom because fish, especially koi, might mistake it for food when it’s on the surface.
Can I use Dam Stop Leak in lined ponds/dams?
Dam Stop Leak® is primarily designed for clay or earth-based dams and waterbodies. While it can occasionally be effective in lined ponds or dams, such instances are rare. In most cases, Dam Stop Leak® might not be the most suitable solution for these situations.
Will Dam Stop Leak work with tree root damage to walls and rabbit holes?
In clay or earth-based dams, Dam Stop Leak® is highly effective for sealing dam walls with tree root damage and is good for addressing rabbit holes. However, when dealing with large rabbit holes, it might be beneficial to provide additional support, such as placing rubble or rocks in the holes before applying the product. If you are unsure, always consult your local dam contractor.
How long will it take to work?
Typically, you should observe a reduction in water loss within approximately 7 days after applying Dam Stop Leak® Professional. If you don’t notice a change in the amount of water loss, you may need to consider further treatment.
How safe is Dam Stop Leak Professional?
Dam Stop Leak® Professional is both non-toxic and environmentally friendly, making it a safe choice. Notably, our product contains no potassium, setting it apart as one of the safest solutions available on the market.
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Videos




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What our customers are saying
Calculate How Much To Use
Tanks & Troughs
| Coptrol Size (L) | Volume Treated (L) | Surface Area Treated (m²) |
|---|---|---|
| 1L | 100,000L - 200,000L | 120m2 - 240m2 |
| 2L | 200,000L - 400,000L | 240m2 - 480m2 |
| 5L | 500,000L - 1,000,000L (1ML) | 600m2 - 1,200m2 |
| 15L | 1,500,000L (1.5ML) - 3,000,000L (3ML) | 1,800m2 - 3,600m2 |
| 20L | 2,000,000L (2ML) - 4,000,000L (4ML) | 2,400m2 - 4,800m2 |
| 200L | 20,000,000L (20ML) - 40,000,000L (40ML) | 24,000m2 - 48,000m2 |
| 1000L | 100,000,000L (100ML) - 200,000,000L (200ML) | 120,000m2 - 240,000m2 |
Coptrol™

How it works
Method of application
Alternatively Coptrol can be dripped directly into flowing water in high volume treatments such as flood irrigation water.
Dam Stop Leak® Professional: Effective Dam and Pond Leak Repair Solution
Dam Stop Leak® Professional offers a swift and efficient solution for sealing leaks in clay and earth-based dams and ponds. This granulate polymer product effectively plugs leaks without the need to drain your water, making it the ideal choice for preserving your valuable water resources.
Key Features:
- Coverage:
1kg treats 17m²
5kg treats 83m²
15kg treats 250m²
18kg treats 300m²
- Quick and Effective: Say goodbye to leaks with Dam Stop Leak® Professional, which can be applied directly to the water
- Efficient Leak Blockage: This granulate polymer is drawn into cracks and holes, expanding to seal leaks, regardless of the leak’s exact location.
- Ideal for Earth or Clay Dams: Dam Stop Leak® Professional is designed for earth or clay-based dams that have previously held water.
- Non-Toxic and Environmentally Friendly: Our product is 99% insoluble, free of additives that create a flocculant effect, and doesn’t contain potassium, making it the safest sealant on the market.
- Cost-Effective: Save time and money by avoiding the need for draining, excavation, or other costly methods.
- Versatile Application: Use Dam Stop Leak® Professional on full or partially full dams, apply it directly to known leakage areas using correct product to dimension ratio, or generally apply it when the leak location is unknown.
- Long-Lasting Effect: Once applied, the polymers become part of the dam structure, providing a durable solution that lasts for years.
For best results, use on existing dams that have held water in the past. In newly constructed dams, consult your dam construction contractor for guidance on addressing minor leaks or major construction flaws. Dam Stop Leak is not designed for use in concrete, tin, or lined tanks and dams. Your mileage may vary in these situations
- Coverage:
Dam Stop Leak® Professional Application Guide
Explore the comprehensive application guide for Dam Stop Leak® Professional. Discover where to use it, the recommended quantity, how to apply, and application rates for optimal results.
Where to Use: Dam Stop Leak® Professional is suitable for various applications, including:
Clay/Earth Based Watering Dams, Ponds:
- Quantity: 60 grams of Dam Stop Leak® Professional per m2 of water surface area.
- How to Apply: Spread over the water’s surface with an appropriate applicator or by hand.
- Application Rates: Choose between a targeted application and treating the entire water surface, as needed.Treating the entire water body: Calculate the surface area of your water body (Length (m) X Width (m) = m2)1kg treats 17m²
5kg treats 83m²
15kg treats 250m²
18kg treats 300m²Targeted Application: When the location of the leak is known, it is important to note that this may not be the location of where the water is being drawn from. In this instance, Dam Stop Leak® Professional should be applied 10m either side of leak location, and out to the deepest point of the waterbody.
For Best Results:
- Ensure water is present in the area designated for treatment.
- Apply when the water temperature is above 5°C.
- Optimal results are achieved under light wind conditions.
- Clear the area of excessive aquatic vegetation and algae for an effective application.
Important Notes:
- Dam Stop Leak® Professional is designed to assist in repairing leaking dams and should not be used as a substitute for major constructional flaws or situations requiring a liner.
- While it may slow leaks in concrete, tin, or lined tanks and dams when the leak is at the base, it is not specifically designed for this purpose.
Follow this application guide for Dam Stop Leak® Professional to effectively address leaks in your dams and ponds, ensuring optimal results in various scenarios.

Explore the versatile applications of Dam Stop Leak® Professional and discover the key targets where this innovative solution can be effectively employed. From irrigation to stock watering, this powerful product offers efficient and eco-friendly solutions to various water-related challenges.
Targets for Dam Stop Leak® Professional:
- Clay or earth lined dams and ponds
- Dams and ponds that have held water in the past
- Dams and ponds with minor leaks, cracks and seepage
Best Practices:
To maximise the effectiveness of Dam Stop Leak® Professional, remember to:
- Ensure that water is present in the designated area for treatment.
- Apply when the water temperature is above 5°C.
- Opt for application during light wind conditions.
- Clear the area of excessive aquatic vegetation and algae for optimal results.
Choose Dam Stop Leak® Professional for an eco-friendly, cost-effective, and versatile solution to your water conservation needs.
Should I turn my pump off during application?
Yes, it is recommended to turn off pumps and/or filters for at least 24 hours after applying Dam Stop Leak® Professional. As the polymer settles to the bottom of your pond or dam, it will gradually seep into the pond walls. Be sure to check for any residual material before reactivating the pumps.
Is it safe to use around fish?
Absolutely, Dam Stop Leak® is completely safe for fish, being a non-toxic product. However, it’s important to monitor your fish until the product sinks to the bottom because fish, especially koi, might mistake it for food when it’s on the surface.
Can I use Dam Stop Leak in lined ponds/dams?
Dam Stop Leak® is primarily designed for clay or earth-based dams and waterbodies. While it can occasionally be effective in lined ponds or dams, such instances are rare. In most cases, Dam Stop Leak® might not be the most suitable solution for these situations.
Will Dam Stop Leak work with tree root damage to walls and rabbit holes?
In clay or earth-based dams, Dam Stop Leak® is highly effective for sealing dam walls with tree root damage and is good for addressing rabbit holes. However, when dealing with large rabbit holes, it might be beneficial to provide additional support, such as placing rubble or rocks in the holes before applying the product. If you are unsure, always consult your local dam contractor.
How long will it take to work?
Typically, you should observe a reduction in water loss within approximately 7 days after applying Dam Stop Leak® Professional. If you don’t notice a change in the amount of water loss, you may need to consider further treatment.
How safe is Dam Stop Leak Professional?
Dam Stop Leak® Professional is both non-toxic and environmentally friendly, making it a safe choice. Notably, our product contains no potassium, setting it apart as one of the safest solutions available on the market.
• Download Dam Stop Leak® Professional Product Brochure PDF
• Download Dam Stop Leak® Professional SDS PDF
• Download Sodium vs Potassium Dam Stop Leak® Literature Review PDF
• Download Dam Stop Leak® Trademark PDF



Safe For
Description
Dam Stop Leak® Professional: Effective Dam and Pond Leak Repair Solution
Dam Stop Leak® Professional offers a swift and efficient solution for sealing leaks in clay and earth-based dams and ponds. This granulate polymer product effectively plugs leaks without the need to drain your water, making it the ideal choice for preserving your valuable water resources.
Key Features:
- Coverage:
1kg treats 17m²
5kg treats 83m²
15kg treats 250m²
18kg treats 300m²
- Quick and Effective: Say goodbye to leaks with Dam Stop Leak® Professional, which can be applied directly to the water
- Efficient Leak Blockage: This granulate polymer is drawn into cracks and holes, expanding to seal leaks, regardless of the leak’s exact location.
- Ideal for Earth or Clay Dams: Dam Stop Leak® Professional is designed for earth or clay-based dams that have previously held water.
- Non-Toxic and Environmentally Friendly: Our product is 99% insoluble, free of additives that create a flocculant effect, and doesn’t contain potassium, making it the safest sealant on the market.
- Cost-Effective: Save time and money by avoiding the need for draining, excavation, or other costly methods.
- Versatile Application: Use Dam Stop Leak® Professional on full or partially full dams, apply it directly to known leakage areas using correct product to dimension ratio, or generally apply it when the leak location is unknown.
- Long-Lasting Effect: Once applied, the polymers become part of the dam structure, providing a durable solution that lasts for years.
For best results, use on existing dams that have held water in the past. In newly constructed dams, consult your dam construction contractor for guidance on addressing minor leaks or major construction flaws. Dam Stop Leak is not designed for use in concrete, tin, or lined tanks and dams. Your mileage may vary in these situations
- Coverage:
How To Use
Dam Stop Leak® Professional Application Guide
Explore the comprehensive application guide for Dam Stop Leak® Professional. Discover where to use it, the recommended quantity, how to apply, and application rates for optimal results.
Where to Use: Dam Stop Leak® Professional is suitable for various applications, including:
Clay/Earth Based Watering Dams, Ponds:
- Quantity: 60 grams of Dam Stop Leak® Professional per m2 of water surface area.
- How to Apply: Spread over the water’s surface with an appropriate applicator or by hand.
- Application Rates: Choose between a targeted application and treating the entire water surface, as needed.Treating the entire water body: Calculate the surface area of your water body (Length (m) X Width (m) = m2)1kg treats 17m²
5kg treats 83m²
15kg treats 250m²
18kg treats 300m²Targeted Application: When the location of the leak is known, it is important to note that this may not be the location of where the water is being drawn from. In this instance, Dam Stop Leak® Professional should be applied 10m either side of leak location, and out to the deepest point of the waterbody.
For Best Results:
- Ensure water is present in the area designated for treatment.
- Apply when the water temperature is above 5°C.
- Optimal results are achieved under light wind conditions.
- Clear the area of excessive aquatic vegetation and algae for an effective application.
Important Notes:
- Dam Stop Leak® Professional is designed to assist in repairing leaking dams and should not be used as a substitute for major constructional flaws or situations requiring a liner.
- While it may slow leaks in concrete, tin, or lined tanks and dams when the leak is at the base, it is not specifically designed for this purpose.
Follow this application guide for Dam Stop Leak® Professional to effectively address leaks in your dams and ponds, ensuring optimal results in various scenarios.

Targets
Explore the versatile applications of Dam Stop Leak® Professional and discover the key targets where this innovative solution can be effectively employed. From irrigation to stock watering, this powerful product offers efficient and eco-friendly solutions to various water-related challenges.
Targets for Dam Stop Leak® Professional:
- Clay or earth lined dams and ponds
- Dams and ponds that have held water in the past
- Dams and ponds with minor leaks, cracks and seepage
Best Practices:
To maximise the effectiveness of Dam Stop Leak® Professional, remember to:
- Ensure that water is present in the designated area for treatment.
- Apply when the water temperature is above 5°C.
- Opt for application during light wind conditions.
- Clear the area of excessive aquatic vegetation and algae for optimal results.
Choose Dam Stop Leak® Professional for an eco-friendly, cost-effective, and versatile solution to your water conservation needs.
FAQ
Should I turn my pump off during application?
Yes, it is recommended to turn off pumps and/or filters for at least 24 hours after applying Dam Stop Leak® Professional. As the polymer settles to the bottom of your pond or dam, it will gradually seep into the pond walls. Be sure to check for any residual material before reactivating the pumps.
Is it safe to use around fish?
Absolutely, Dam Stop Leak® is completely safe for fish, being a non-toxic product. However, it’s important to monitor your fish until the product sinks to the bottom because fish, especially koi, might mistake it for food when it’s on the surface.
Can I use Dam Stop Leak in lined ponds/dams?
Dam Stop Leak® is primarily designed for clay or earth-based dams and waterbodies. While it can occasionally be effective in lined ponds or dams, such instances are rare. In most cases, Dam Stop Leak® might not be the most suitable solution for these situations.
Will Dam Stop Leak work with tree root damage to walls and rabbit holes?
In clay or earth-based dams, Dam Stop Leak® is highly effective for sealing dam walls with tree root damage and is good for addressing rabbit holes. However, when dealing with large rabbit holes, it might be beneficial to provide additional support, such as placing rubble or rocks in the holes before applying the product. If you are unsure, always consult your local dam contractor.
How long will it take to work?
Typically, you should observe a reduction in water loss within approximately 7 days after applying Dam Stop Leak® Professional. If you don’t notice a change in the amount of water loss, you may need to consider further treatment.
How safe is Dam Stop Leak Professional?
Dam Stop Leak® Professional is both non-toxic and environmentally friendly, making it a safe choice. Notably, our product contains no potassium, setting it apart as one of the safest solutions available on the market.
Resources
Videos




Safe For









