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.
coffee. From what I've read, caffeine is ok under the amount of 300mg a day. I buy Folgers half caff brand coffee so its already mixed and drink 1 to 2 cups a day.3 days a week when I work, I also have 1 cup of regular.offee. From what I've read, caffeine is ok under the amount of 300mg a day. I buy Folgers half caff brand coffee so its already mixed and drink 1 to 2 cups a day.