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EPA registration data for Reg. 67690-72 →
SePRO Total Pond - Clear G is a granular algaecide and water quality enhancer designed for use in ponds, lakes, reservoirs, irrigation and drainage canals, and man-made outdoor water features such as water gardens, ornamental ponds, and fountains. The active ingredient is Copper Sulfate Pentahydrate at a concentration of 58.9%. This product controls a broad range of nuisance algae, including green, blue-green (cyanobacteria), planktonic and filamentous algae, and plant-macroalgae. Beyond algae control, it is formulated to improve water clarity by reducing phosphorus levels and binding/precipitating suspended solids. It is applied directly to the water surface. For larger areas, the product can be broadcast using a waterproofer, scoop, or other appropriate equipment. For smaller applications, surface spray application can be used by dissolving the required amount in a spray tank. Users should note that the product is effective year-round, but application should occur before ice forms. When handling, wear protective eyewear, gloves, long-sleeved shirts, pants, shoes/stockings, and waterproof clothing. If contact occurs, rinse skin or eyes with plenty of water and seek medical attention if necessary.
Pests covered (1)
nuisance algae (green, blue-green/cyanobacteria, planktonic, filamentous, and plant-macroalgae)
Areas treatable (1)
ponds, lakes, reservoirs, irrigation and drainage canals, and man-made outdoor water features (water gardens, ornamental ponds, fountains)
How to treat each type of area 1
ponds, lakes, reservoirs, irrigation and drainage canals, and man-made outdoor water features (water gardens, ornamental ponds, fountains)
nuisance algae growing
| Target pest |
Location |
Rate |
Unit |
Label notes |
| nuisance algae (green, blue-green/cyanobacteria, planktonic, filamentous, and plant-macroalgae) |
Outdoor |
See Table 1 for specific application timing and pounds per acre |
lbs |
Use the Algae Treatment Program (Table 1) for initial control; use the Algae Prevention Program (Table 2) for maintenance. |
Mixing instructions 1
| For pests |
Location |
Amount |
Per |
Label notes |
| nuisance algae |
Outdoor |
dissolve required amount |
1/2 spray tank |
Surface spray application: dissolve in a spray tank. Use warm water if available to speed up dissolution. |
Worker safety
PPE required
Wear protective eyewear (goggles, face shield, or safety glasses), long-sleeved shirt, long pants, shoes/stockings, and waterproof clothing. Wash hands before eating, drinking, chewing gum, using tobacco, or using the toilet. Remove contaminated clothing before reuse.
Timing & weather
- Can be used year-round.
- Apply before ice forms.
- Initial application is most effective in early season when algae are rapidly growing.
Use restrictions 4
- Do not apply more than 1/3 of the water's total surface area during any one application.
- Consult with appropriate state or local water authorities before applying.
- Do not use in waters destined for use as drinking water; these waters must receive additional and separate potable water treatment.
- Do not use in waters containing low pH (≤5.0), low dissolved organic carbon (DOC) levels (≤3.0 mg/L), or 'soft' waters (alkalinity less than 50 mg/L).
Active ingredient
Copper 58.9%
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