Old-school toilets utilise an internal boxed rim with tiny water punch-holes that are notorious for trapping mineral scale, mold, and fecal bacteria completely out of sight. Volga's modern water closets feature an open, rimless flushing architecture that eliminates these hidden, unhygienic hollow channels entirely. When flushed, a precision-engineered hydraulic manifold drives water dynamically around the fully exposed interior bowl, sweeping the surface clean in one powerful, splash-free whirlpool.