ONOSS generates a short, powerful pressure pulse. This travels through the water column to the blockage and mechanically clears it – without any corrosive agents.

Fill the basin with water until the lid is submerged. Close the overflow with a cloth. Place the can straight onto the drain opening and press down firmly for no more than one second.

The water transmits the pressure to the blockage. Without water, the impulse dissipates ineffectively, so never use without water.

ONOSS is designed for sinks, showers, and bathtubs in the home. Plastic and metal pipes are not affected because no corrosive agents are involved.

One can is sufficient for about 20 applications and has an unlimited shelf life.

The effect is identical for lemon, lavender, and ocean breeze. Only the scent that remains in the room after use differs.

Repeat the process until the drain runs freely. If it remains clogged, the blockage is usually deeper in the pipe and should be professionally inspected.

Yes. Regular use keeps the drain clear and prevents new blockages.

ONOSS generates a short, powerful pressure pulse. This travels through the water column to the blockage and mechanically clears it – entirely without corrosive agents.

Fill the basin with water until the lid is submerged. Close the overflow with a cloth. Place the can straight over the drain opening and press down firmly for no more than one second.

The water transmits the pressure to the clog. Without water, the impulse escapes ineffectively, so never use it without water.

ONOSS is designed for sinks, showers, and bathtubs in the home. Plastic and metal pipes are not affected because no corrosive agent is involved.

One can is sufficient for about 20 applications and has an unlimited shelf life.

The effect is identical for lemon, lavender, and ocean breeze. The only difference is the scent that remains in the room after use.

Repeat the process until the drain runs freely. If it remains clogged, the blockage is usually deeper in the pipe and should be professionally inspected.

Yes. Regular application keeps the drain clear and prevents new blockages.