Copper Sulfate Crystals (Pentahydrate) - 5 Lbs.

• A versatile farm chemical:
• 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.

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