Green Rhino Dewatering Pack 15. Dewatering packs come in a sealable container with 5, 10 or 15 pillows. This system contains technology that turns oil into a non leaching rubber so that it can be easily removed from water.It removes hydrocarbons down to non-detectable levels.Each polymer pillow solidifies and retains one litre of hydrocarbon within minutes of contact.Once the pillows have collected the oil, the remediated water can be processed through an oil and sediment filter for a final polish, allowing it to be safely pumped into the environment.Big cost savings compared to vacuum tankers.Full data sheets for each filter available on request.