Stump-Out Frequently Asked Questions

Stump Out In Use
Accelerate tree
stump decomposition without harming surrounding vegetation.
Stump-Out ® tree stump remover removes old stumps from cut- or wind-damaged trees without having to dig. Stump-Out makes a stump porous by dissolving the lignin binding between the cellulose layers.
Click on the tabs below to find answers to the most frequently
asked questions about Stump-Out tree stump remover.
How does Stump-Out work?

Stump-Out dissolves the lignin which is found between the cellulose layers, accelerating the natural decomposition of the stump.
How long does Stump-Out take to work?

Stump-Out will take 4-6 weeks to work. After the 4-6 weeks, the stump may be burned or left to decompose naturally.
Will Stump-Out harm surrounding vegetation?

No. When used as directed, Stump-Out will not harm surrounding vegetation.
How big do the stumps have to be to use Stump-Out?

Stump-Out has successfully been used on stumps down to four inches wide, by following the instructions for a 12-18 inch stump.
Does Stump-Out work on fresh cut stumps?

Stump-Out works best on dry stumps. Wait to treat new stumps until the stump has dried out.
What is the active ingredient?

The active ingredient is Sodium metabisulfite, which is an ingredient commonly used in paper mills to break down wood pulp.
Is Stump-Out a powder or a liquid?

Stump-Out is a powder.
What is the shelf life of Stump-Out?

Stump-Out will last 3-5 years when stored unopened in a cool, dry place.
How much Stump-Out will I need?

Stumps 12-18 inches wide require 8-12 ounces of Stump-Out. Stumps wider than 18 inches will require a minimum of 16 ounces. One bottle of Stump-Out contains 16 ounces.
How do I use Stump-Out?

Drill 1-inch holes straight down from top of stump to depth of about 10 inches. Then into the side of the stump, about 4 to 5 inches down from the top, drill a 1-inch wide hole slanting downward toward the bottom of each vertical hole. The two hole ends should meet. It is important to drill the side holes slanting downward so the liquid (water, kerosene or fuel oil) to be poured into the holes won't run out. Also when the drill holes meet, a natural ventilation is created to destroy the stump when ignited. After holes are drilled as directed, follow this procedure.
            1. Pour 4-6 ounces of Stump-Out into each hole.
            2. Fill holes with water
            3. Let stand for four to six weeks.
            4. After four to six weeks, fill with kerosene or fuel oil.
            5. Let stand until kerosene or fuel oil is completely absorbed into stump (four to five weeks depending
                on size of stump).
            6. Pour enough kerosene onto the stump to ignite it.
            7. The stump will now burn with a smoldering red glow clear down to the root, until only harmless
                ashes are left.

For smaller stump disposal (12-18 inches wide), drill 2 sets of holes in each stump, proceed as directed.

For larger diameter stumps, 18 inches or wider, drill a minimum of 4 sets of holes. Proceed as directed.

For more efficient stump disposal, drill additional sets of holes in each stump. Proceed as directed.
Do I have to burn my stump?

No. Although burning the stump eliminates the stump quicker. Stump-Out will still accelerate the process of natural decomposition without burning.

Click here to print the information sheet on Stump-Out Tree Stump Remover