Allan writes, The purpose of the filter course is to prevent fine soil medium particles from washing into the drainage layer causing clogging or reduction of the drainage capacity of the drainage layer.
Just how much caffeine is too much? For the average person, up to 300 mg of coffee a day, or two to four cups of the average brewed coffee, is a moderate amount that isn't harmful. But once you hit more than four cups, you may experience less-than-desirable side effects.
You probably arenât sure how much that is though, considering measuring caffeine consumption isnât regularly practiced. Four-hundred milligrams is about two four cups of brewed coffee, 10 cans of soda, or two energy shots. But, as the experts advise, try keeping it to a minimum of 100 milligrams per day.