He started removing water and fish, of which there were 42.
The "right" answer for completely removing water might have been more like 90%.
To an observer it would seem he was removing excess water.
They remove waste products and extra water, which become urine.
However, for certain applications, it is necessary to further remove water and oxygen.
Drying involves using air and or heat to remove water from the paper sheet.
Portable pumps were used to remove water from the city.
Remove from oven and stir in 1/4 cup additional water.
Physical production - where the oil is heated to melt the fat and remove water.
That's not enough when you're talking about aggressively removing food and water to end someone's life.