Make sure that warning signs are visible and readable. Keep rescue equipment, such as ropes, poles, etc., in good condition and close to the pond or lagoon. This value varies from 2 to 6 inches in Colorado, depending on location. Manure storage ponds are designed to be emptied at least once a year. Thoroughly agitate the pond prior to pumping to stir up the solids that settle to the bottom.
Agitation releases strong odors.
Plan them for times that are least offensive to neighbors. Sample the waste in the pond and test it to determine the nutrient content of the waste prior to cleanout. There will always be some solids that cannot be pumped from the pond as a liquid or slurry. Remove these solids when they accumulate to a depth of 6 to 8 inches over the bottom of the pond. Most ponds can be designed with ramps and paved bottoms to facilitate removing solids with conventional farm equipment.