31. As needed, the milk travels through a pipe from the holding tank into the pasteurizing tank. 32. We filled the fresh-water holding tank from a friend's faucet and set off for New Mexico. 33. The molasses was pumped into a holding tank near the river, and was diluted with water. 34. The holding tank was being drained to make sure there weren't any passengers in the truck. 35. Most include lockable doors, ventilation near the top, and a vent pipe for the holding tank . 36. The solid waste is collected in a holding tank to be used as fertilizer for plants. 37. New holding tanks and a customized aeration system were implemented in 1999 to improve fish care. 38. Some finer models had spigots for draining ice water from a catch pan or holding tank . 39. The basic trick in a solar water heating system is to use a well-insulated holding tank . 40. The new charges involve additional chemical technology, including cooling elements and holding tanks , the report said.