A gravity bong
is a method of consuming smokable substances such as cannabis
. The term describes both a bucket bong and a waterfall bong, since both use gravity and water to develop smoke. The bucket bong is made out of two containers, with the larger, open top container filled with water. The smaller has an attached bowl
and open bottom, and the smaller is placed into the larger. Once the bowl is lit, the operator must move the small container up, causing a pressure difference. Smoke slowly fills the small jar until the user removes the bowl and inhales the contents. A waterfall bong is made up of only one container. The container must have a bowl and a small hole near the base so the water can drain easily. As the water flows out of the container, air is forced through the bowl and causes the substance to burn and accumulate smoke in the bong. The bong is typically used for smoking cannabis and is generally not recommended for smoking tobacco
or other herbal substances. The bong is, however, often marketed for use of tobacco. Internationally, the sale of gravity bongs is often prohibited in countries where marijuana is illegal due to its association with the herb.
Cannabis indica has a higher ratio of CBD:THC compared to Cannabis sativa. Cannabis strains with relatively high CBD:THC ratios are less likely to induce anxiety than vice versa. The effects of sativa are well known for its cerebral high, while indica is well known for its sedative effects which some prefer for night time use. Both types are used as medical cannabis. Indica plants are normally shorter and stockier than sativas. They have wide, deeply serrated leaves and a compact and dense flower cluster. The effects of indicas are predominantly physical and sedative.