Liquid quality system with drag-inducing portions

A system for removing particulates from liquid and inducing drag in a liquid flow, wherein the system is configured for insertion into a manhole thereby creating a sump region below the system, wherein the system comprises:

• a liquid quality device comprising:
• a first region having a funnel with a sump inlet aperture;
• a second region having a sump outlet aperture;
• a weir positioned between the first region and the second region;
• a plurality of drag-inducing portions located below the liquid quality device and projecting inwardly towards a central axis of the sump region, wherein the plurality of drag-inducing portions comprise:
• a first set of drag-inducing portions;
• a second set of drag-inducing portions;
• a third set of drag-inducing portions;
• and
• a fourth set of drag-inducing portions, wherein the first, second, third, and fourth sets of drag-inducing portions are positioned equidistant from each other and at a same height around a perimeter of the sump region;
• a plate positioned in the sump region between the liquid quality device and the plurality of drag-inducing portions wherein the plate projects inwardly toward the central axis of the sump region;
• and
• a tube positioned below the sump inlet aperture, wherein the tube extends downwardly from the sump inlet aperture into the sump region;
• wherein the funnel in the first region, the weir, and the plurality of drag-inducing portions are integrated and formed into a single piece.