Septic tanks are commonly used for below-ground storage. Single-day storage is generally not recommended because it lacks flexibility. The cost of this option depends on storage size. If you handle manure as a solid you will need to buy a liquid spreader for the liquid milkhouse wastes. You will also need a pump to fill or empty the storage.
Agitation is needed occasionally to keep solids from building up in the storage.
A major consideration is that this option requires land for application in wet weather, the cropping season, and winter. Land application under this and other options must meet nutrient rate standards, setback distances, soils and slope requirements of the revised feedlot rules. Consider where the liquid manure spreader will be stored during cold weather to avoid having it freezing up. Manure storage capacity is increased to accommodate the milkhouse wastes, and the milkhouse wastes are simply added to the liquid manure storage. The option is less economical if you haul manure daily or handle manure as a solid because of the cost of the storage structure.