Check the listing for details. Copper Sulfate Crystals 50lb Bag (LARGE CRYSTALS) EPA. Condition: New. Listed at 192.50 USD. Discover the power of Copper Sulfate Crystals, now available in a substantial 50-pound bag featuring large crystals for effective application. This product is EPA registered and ideal for various applications from algae control in ponds to root maintenance in sewer lines. Key Features:Type: Copper Sulfate (Pentahydrate) CrystalsPurity: 99% pure with Copper as metallic 25.2%EPA Registration: EPA Reg. No. 73385-1, EPA EST. No. 46923-NJ-1Packaging: Sealed in a durable bag for freshnessShipping: Fast delivery via FedEx ground Applications:Algae Control: Effective in ponds and lakes at 2-3 lbs. per acre-foot of waterPlant Root Maintenance: Controls root growth in sewer linesFungi and Bacteria Control: Prevents growth on plants Usage Rates:Ponds and Lakes: Apply in early spring before algae growth. Broadcast over water or use in porous bags.Water Tanks and Fountains: Use 1/8 teaspoon per 100 gallons to treat existing algae. Root Control in Sewer Lines:Application: Pour large-sized crystals into toilets and flush.Repeat: Flush multiple times to ensure crystals reach sewer lines.Effectiveness: Results visible over several days to weeks, clearing roots and restoring flow. Additional Tips:Safe for Septic Systems: Does not harm bacterial action in septic tanks.Avoid Pipes: Do not pour into sink drains or tub traps to prevent pipe damage. Shipping Information:Delivery: Shipped promptly via FedEx ground in a secure box.Restriction: Not shipped to New York State due to regulations. Transform Your Maintenance Routine: Enhance your water bodies and maintain sewer lines effectively with EPA-registered Copper Sulfate Crystals. Ideal for both residential and commercial applications, ensuring lasting results and environmental safety. Contact Us: For further details or questions, please contact us through eBay messaging. We're committed to providing quality products and excellent service. Note: For agricultural and industrial use only.