This allows hydrogen sulfide gas to precipitate out of the water. The tank must be designed so the water entering it mixes thoroughly. The water next passes through a filter, removing the precipitated matter and any remaining chlorine from the water. This type of system requires a high investment in maintenance, as well as cost of installation and operation. The Aeration process reduces incoming water to a spray in the air.
Fresh air is directed through the spray.
The water is collected in a storage tank and repressurized. It's filtered by a particulate filter to remove particles that may be carried from the storage tank. After being drawn through the water spray, the air needs to be directed outside to the atmosphere because it could be toxic and potentially explosive if left inside. No chemicals are added to the water with this system. It also requires little maintenance compared to the first two methods and no chemicals must be purchased.