The inside of the slurry lagoon when nearly empty.Wet winters with excessive rainfall can put slurry systems under pressure unless sufficient capacity has been designed into the system at the outset.

• 上图是粪坑里几乎是空的时候，在多雨的冬季，伴随着大量雨水的降入，粪坑里就会有很多泥浆，如果粪坑储存量小的话，就会造成外溢。