Pond & Lake Supplies

Large Copper Sulfate Crystals

Seed Barn

$5.95

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Copper Sulfate Large Crystals

  • A versatile farm chemical:
  • Pest control - snails and slugs
  • Pond cleaner - algae, mosquito larvae
  • Natural fungicide mildew
  • Antiseptic - household germs
  • Organic Bordeaux mix - blight, apple scab, leaf curl, etc.);
  • Remove old tree stumps (bore a hole and insert
  • Kill roots clogging septic tank pipes - flush down the toilet.
  • Wood and canvas preservative (prevents dry rot),

...or simply grow lovely blue crystals.

 Usage: For pipeline systems (toilets, etc.) - 1 cup down drains every 2 weeks or 2 cups per month. 

AK

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Based on 4 reviews Average Rating 5.00 stars out of 5
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  • O
    Olivia Inniss O. I. Olivia I.
    05-03-2025

    Cooper sulfate

    Crystal are a bit large so I let them dissolve prior to pouring in the line

  • A
    August Spranzman A. S. August S.
    23-02-2025

    Root killer

    Great product!

  • C
    Chuck Meis C. M. Chuck M.
    16-11-2024

    Individual

    Just what I needed

  • C
    Cynthia Rayburn C. R. Cynthia R.
    25-01-2023

    Keeping Septic lines free of roots

    Thank you for supplying us with large crystals. They last longer.

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Category: Copper Sulfate Large Crystals

Type: Copper Sulfate

Brand: Seed Barn


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Description

Copper Sulfate Large Crystals

  • A versatile farm chemical:
  • Pest control - snails and slugs
  • Pond cleaner - algae, mosquito larvae
  • Natural fungicide mildew
  • Antiseptic - household germs
  • Organic Bordeaux mix - blight, apple scab, leaf curl, etc.);
  • Remove old tree stumps (bore a hole and insert
  • Kill roots clogging septic tank pipes - flush down the toilet.
  • Wood and canvas preservative (prevents dry rot),

...or simply grow lovely blue crystals.

 Usage: For pipeline systems (toilets, etc.) - 1 cup down drains every 2 weeks or 2 cups per month. 

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AK

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