A sediment bottle is another name for an oil sight glass. For instance, using a sediment bottle will show metal shavings in a pump. This helps to determine condition of lubricating oil in pumps, gear boxes, turbines and storage tanks. A sediment bottle is a tool used for oil condition monitoring. As a result, it will show the presence of free water, sediment, emulsified oil or dark oil. Avoid a costly repair! Mount a transparent oil sight glass to the drain of sump with a threaded connection and a drain valve for water removal.