Traditionally, wringers release dirty water back into the primary cleaning water when using the conventional Mop Bucket with Wringer. But with our Dual Buckets the Dirty Water Bucket nests below the wringer to collect the dirty water and keep it separate from the cleaning solution or you can have two separate buckets for the dirty water and the clean solution. This preserves the quality and cleaning power of cleaning solution, so less solution is needed. It isolates dirty water for reduced risk of cross-contamination and it helps produce cleaner, less slippery floors. Finally,  it divides liquid weight; less lifting power needed when emptying buckets.