Definition of rappel for English Language Learners : to move down a steep cliff, rock, etc., by pushing your feet against its surface and sliding down a rope RAPPEL Defined for Kids
How much water you need to drink to get the most benefits depends on your diet, exercise routine, health and weather. You can start by aiming for the basic recommended amount for adults, which is 8 to 12 cups a day, according to Clemson Cooperative Extension, and making adjustments as needed.
It will not fill you up faster. However, water that is room temperature will. So, drink an 8 ounce glass of water before each meal and you will fill up faster. Another trick I use is to eat my meals on a salad plate instead of a dinner plate. Eat for health, not for pleasure and you will lose weight. Remember that drinking lots of water will help flush your system of impurities, keeps your kidneys healthier and you fuller! Just don't put ice in it or drink it really cold. I guess chilled would be okay, but try to drink it closer to it's natural state. Cool, not cold.