Duo Ontstopper

Bison Duo Unblocker is an extremely powerful and effective 2-component drain clearing agent

Duo Ontstopper

What is it?

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What does it do?

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Getting started

Before use:

Personal safety

Wear protective gloves, protective clothing, eye protection, face protection.

During use:

Handling of packaging

Release the childproof cap on the container by pressing it down while unscrewing.

Directions for use

  • 1. Remove as much water as possible from sink or washbasin.
  • 2. Release the childproof cap on the container by pressing it down while unscrewing.
  • 3. Carefully pour part 1 (see scale) of bottle 1 (red) into the drain. Screw the top back on the bottle.
  • 4. Now carefully pour part 1 of bottle 2 (black) into the drain and allow the product to act for at least 1 hour. If the drain is difficult to clear leave the product to act overnight. Screw the top back on the bottle.
  • 5. Rinse with copious amounts of hot water.
  • 6. Now pour part 2 of bottle 1 (red) into the drain.
  • 7. Also pour part 2 of bottle 2 (black) into the drain and allow the product to act for 1 hour.
  • 8. Rinse with copious amounts of hot water.

Points of attention

Never use in combination with other products as this may release poisonous gases.

After use:

Storage conditions

Keep in a dark, cool place, in an upright position, during storage or transportation.

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