A fill and drain jetted hydromassage whirlpool bathtub having a tub made of acrylic, resin and fiberglass. The whirlpool bathtub having a water system with drain down water features and components made of a material having an antimicrobial therein. Bacteria reduction occurs in the water vessel system where the antimicrobial is therein. The non-porous acrylic surface, the drain down features and the antimicrobial surfaces provide an economic sanitation level for hydromassage jetted whirlpool bathtub.