The Pollardwater Prime Ultra-Grease Block is filled with bacteria that, when lowered into grease-filled manholes, slowly and continuously dissolves and digests grease in lift stations and wet wells. In addition to combatting the costs of major grease disposal, it also offers timesaving benefits thanks to its easy-to-use design. Simply use the included hanging rope to lower the block into contaminated water and let it sit across from high-flow areas where it dissolves over 30 to 90 days. This product is available in three weights, from as little as 5 pounds for lesser amounts of grease to as much as 30 pounds for higher, more detrimental grease problems. 800-437-1146; www.pollardwater.com.