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Product Summary

BioGuard Spot Kill Black Algae Killer for Swimming Pools 2 lb by BioGuard
BioGuard Spot Kill kills and remove black algae stains from swimming pools!
Sale Price: $20.99 Show More

Frequently Purchased Together

Total Price for 3 items $394.97

Product Details

BioGuard Spot Kill Black Algae Killer for Swimming Pools 2 lb

BioGuard Spot Kill rids any pool of unsightly algae quickly and easily. Near neutral pH does not affect water balance. High solubility makes it compatible for most pool surfaces. Treat algae as soon as detected to assure a quick and easy remedy.

Product Benefits:

  • 99% Active ingredient
  • Kills all types of algae
  • Most effective on Black Algae
  • Easy to use granular form
  • Safe for all types of pools
  • Use full strength
  • Economical and safe


  • Clean filter and adjust water balance
  • Control metals, if present, using Scale Inhibitor
  • Use 2 lb. per 10,000 gallons of water
  • Check and adjust pH to 7.4  7.6
  • Brush the pool & concentrate on infected areas
  • At night or when the pool is not in use, broadcast directly into the water in the deep end of the pool with the pump running
  • Brush any settled product from the bottom to disperse and prevent discoloration
  • Wait 12-24 hours, then brush the dead algae, & vacuum the pool
  • If living algae is still visible, repeat the process
  • Do not allow swimmer reentry until the chlorine level drops to 3 ppm or lower

Product Specifications

  • Manufacturer: BioGuard
  • BioGuard Item Number: 23107BIO
  • Item Number: 23107
  • UPC/GTIN: 00017541626989
  • Condition: New

BioGuard Item 23107 Documentation and Manuals

BioGuard Item 23107 Suggested Applications

  • All Concrete Pools
  • All Plaster Pools Including Colored, Stone, Glass, & Pebble
  • All Painted Pools
  • All Inground Vinyl Liner Swimming Pools
  • All Aboveground Swimming Pools

Shipping Rates

Orders Under $50 $5.00
Orders Over $50 FREE
3-Day Premium add $50.00
2-Day Premium add $65.00

Shipping Policies:

  • We only ship orders to the 48 contiguous United States.
  • Chemicals, pool paint, and some oversized items, will only ship via ground service.
  • Items shipped via Freight Service, such as pool heaters, will only ship via ground service.
  • All orders shipping to Maryland will incur a 6% sales tax charge.
  • Some items, including hazmat, may require a Direct Signature upon delivery.
  • Shipments must be inspected by customer prior to signing delivery receipt.
  • Orders containing small and light-weight items may ship via FedEx SmartPost or USPS.

Order Returns

You may return an item sold to you by up to 30 days after purchase. The product must be in good condition, unused, in original packaging, and must have all parts, accessories and paperwork; returns without these requirements and/or guidelines will not be accepted.

If a delivery attempt is unsuccessful on order requiring a direct signature, a 15% - 25% re-stock fee may be applied should the order be returned to by the carrier.

Any claims to missing parts, items or damaged goods for any orders must be made within 15 days of delivery date. We are not able to credit your shipping and handling fees if the wrong product was ordered due to customer error. However, if you received the wrong products due to an error on our behalf, we will pay for the return services fees and you will receive a full refund or exchange.

To return an item to, please call 800-4MY-POOL to get a Return Merchandise Authorization number (RMA) and return instructions. Any items returned without an RMA number will be refused. We will process your refund upon receipt of the returned product.

Products that cannot be returned:

  • Pool Chemicals
  • Special Orders
  • Pool Liners
  • Pool Paint

Products that may incur a re-stock fee of 15% - 25%:

  • Pool Cleaners *
  • Pool Heaters *
  • Pool Pumps *
  • Pool Filters *
  • Pool Lights & Fixtures *
  • Pool Ladders & Rails *
  • Pool Slides *
  • Pool Chlorinators *
  • Custom Manufactured Safety Covers
  • Pool & Spa Electronics or Controls *
  • In-Stock Safety Covers
  • Pool Covers that are Ordered and for the Incorrect Pool Size
  • Spa Cover Lifters *
  • Umbrellas & Umbrella Stands, and Hammocks *

* These products must not have been used, installed, or attempted to have been installed. All products must include original paperwork, parts & accessories, and everything accompanied with the product.

Concealed damage on any ground shipment must be reported within 3 business days. Freight shipments must be inspected for damages prior to customer signing delivery receipt. Please email any information regarding concealed damage to Please reference your order number in all order related email correspondence.

Customer is responsible for any/all return shipping charges. Some returns may be subject to a 15% - 25% restock fee that will be deducted from your refund.

Please call 800-4MY-POOL if you have questions regarding this return policy.

Thank you for shopping!

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