When water is stagnant, has a high temperature or a high concentration of Nitrates and Phosphates, an algae bloom might occur, which can cause several problems. Blue-green algae growth, also known as cyanobacteria, can cause a foul odour to the water, a layer of scum on the surface and even pose a health risk. Green algae may colour the water green, look unclear and plants can die. Therefore an algae problem is often unwanted and algae control is desired.
1 An alcoholic beverage made by distillation rather than by fermentation. 2  A rich broth resulting from the prolonged cooking of meat or vegetables, especially greens. 3  Also called pot liquor. 4  An aqueous solution of a nonvolatile substance. 5  A solution, emulsion, or suspension for industrial use.
A liquor is any alcoholic beverage that is produced by distillation. Many liquors, such as whiskey, vodka, rum, gin, and tequila list the alcohol content of the product in terms of a its proof. The proof is a scale used to measure the amount of alcohol in a liquor. The scale goes from 1 to 200. In the United States, the actual alcohol content, by volume, is half of whatever the proof number reads, so that a 200 proof liquor is 100% alcohol and a 100 proof liquor is 50% alcohol by volume. In other words, the proof is exactly twice the percentage of alcohol that the liquor contains. A liquor that is 200 proof, by this scale, is considered an absolute alcohol and a 100 proof liquor is ...