... pump are whole-water cover for KZ Series or half-water cover design for KT/KR Series, it dispel ... the using period.8. For KR/KZ Series, strainer or bottom plate is at option.Application ... harbor, the river, the civil engineering drain off water using.2. The sand graduated field, the ... pool, organic sewage, dirt mud discharges.4. The water of underground, subway, building foundation, underground spring ...