A: Zep Root Killer can be very harmful to wildlife, particularly fish and frogs, because it usually contains copper sulfate which is highly toxic to aquatic environments. While it is safe for land animals when contained inside your pipes, it poses a major risk if it leaks into nearby ponds, streams, or storm drains. To protect local wildlife, you must strictly follow the label instructions and ensure the product never comes into direct contact with the ground or open water.

A: Hello, thank you for your question. No, this product is made to kill roots in sewer systems and should only be used as instructed on the label. Please see the back label for proper usage instructions.

A: Hi, Here is the information we received from our vendor- "The Zep Root Kill when added to an active 300 gallon septic tank at 2 pounds per treatment will temporarily reduce bacterial action, but it will return to normal approximately 15 days after treatment. Please refer to the label directions for proper and effective usage regarding septic tanks and leach lines."

A: Hi there, Here is the information the manufacturer has provided us: Works in Residential or Household Sewer Systems, Septic Tanks, Leach lines and Leach Line Pipes Safe for all drains, pipes, and septic systems Intended for drain lines and septic tanks

A: When a reduced water flow is first noticed, and root growth is thought to be the cause, treat with product. It is important not to wait until a stoppage occurs because some water flow is necessary to move copper sulfate to the area of the root growth. Usually, within 3 to 4 weeks, after roots have accumulated sufficient copper sulfate, the roots will die and begin to decay and water flow should increase. As the roots regrow, follow up treatments with copper sulfate will be required. Applications may be made each year in the spring after plant growth begins, during late summer or early fall, or any time a reduced water flow, thought to be caused by root growth, occurs. Apply 2 to 6 pounds of product two times a year to household sewers. Add product to sewer lines by pouring about 1/2 pound increments into the toilet bowl nearest the sewer line and flush, repeat this process until the recommended dose has been added, or remove cleanout plug and pour entire recommended quantity directly into the sewer line. Replace the plug and flush the toilet several times. Pro-Tip: To maintain normal water flow in your drains, use this product twice a year as a preventative maintenance treatment against slow or clogged drains. Sign up for our Pro Care Reminders from the Zep Commercial home page to help you remember the date!

A: Hi Glenndz, Yes. Safe for all drains, pipes, and septic systems

A: Hi there, For this specific inquiry I would recommend consulting with the manufacturer. 1-888-805-4357 https://zep.com/pages/contact#general Instructions When a reduced water flow is first noticed, and root growth is thought to be the cause, treat with product. It is important not to wait until a stoppage occurs because some water flow is necessary to move copper sulfate to the area of the root growth. Usually, within 3 to 4 weeks, after roots have accumulated sufficient copper sulfate, the roots will die and begin to decay and water flow should increase. As the roots regrow, follow up treatments with copper sulfate will be required. Applications may be made each year in the spring after plant growth begins, during late summer or early fall, or any time a reduced water flow, thought to be caused by root growth, occurs. Apply 2 to 6 pounds of product two times a year to household sewers. Add product to sewer lines by pouring about 1/2 pound increments into the toilet bowl nearest the sewer line and flush, repeat this process until the recommended dose has been added, or remove cleanout plug and pour entire recommended quantity directly into the sewer line. Replace the plug and flush the toilet several times. Pro-Tip: To maintain normal water flow in your drains, use this product twice a year as a preventative maintenance treatment against slow or clogged drains. Sign up for our Pro Care Reminders from the Zep Commercial home page to help you remember the date!

A: Hi Digger60, This product has not been tested on asphalt roof shingles. The Zep Commercial Root Kill features an effective formula designed to quickly dissolve the roots that accumulate in the drain, sewer pipes, and septic field lines that cause pipes to drain slowly or even become completely clogged.

A: Yes, it is sold as 4. No, it should not be used in your pool.

A: Instructions: When a reduced water flow is first noticed, and root growth is thought to be the cause, treat with product. It is important not to wait until a stoppage occurs because some water flow is necessary to move copper sulfate to the area of the root growth. Usually, within 3 to 4 weeks, after roots have accumulated sufficient copper sulfate, the roots will die and begin to decay and water flow should increase. As the roots regrow, follow up treatments with copper sulfate will be required. Applications may be made each year in the spring after plant growth begins, during late summer or early fall, or any time a reduced water flow, thought to be caused by root growth, occurs. Apply 2 to 6 pounds of product two times a year to household sewers. Add product to sewer lines by pouring about 1/2 pound increments into the toilet bowl nearest the sewer line and flush, repeat this process until the recommended dose has been added, or remove cleanout plug and pour entire recommended quantity directly into the sewer line. Replace the plug and flush the toilet several times.