A Y-connector for use in a gastric system comprising: a suction arm having a suction arm stem and an outer end, wherein the suction arm stem has a proximal end and a distal end, the suction arm includes a tapered hollow stem connector (318a,b) adapted to frictionally fit into a section of tubing, the tapered hollow stem connector (318a,b) has a base and an outlet end, the tapered hollow stem connector (318a,b) is axially aligned with the suction arm stem and the base of the hollow stem connector (318a,b) is coupled to the outer end of the suction arm, and the tapered hollow stem connector (318a,b) has an outside diameter that decreases from the base of the hollow stem connector (318a,b) to the outlet end of the hollow stem connector (318a,b); a one-way valve (650, 650a) interposed between the outlet end of the hollow stem connector (318a,b) and the proximal end of the suction arm stem adapted to allow fluid to flow in one direction through the suction arm stem from the base of the hollow stem connector (318a,b) to the outlet end of the hollow stem connector (318a,b); a delivery arm having a delivery arm stem, wherein the delivery arm includes a threaded small-bore connector at an outer end of the delivery arm; and a convergence arm having a convergence arm stem, wherein the convergence arm includes a connection port adapted to receive a multiple lumen tube, the delivery arm stem is in fluid communication with the convergence arm stem, and the suction arm stem is in fluid communication with the convergence arm stem and the delivery arm stem, wherein an interior annular neck defines a linking channel in the convergence arm. a suction arm having a suction arm stem and an outer end, wherein the suction arm stem has a proximal end and a distal end, the suction arm includes a tapered hollow stem connector (318a,b) adapted to frictionally fit into a section of tubing, the tapered hollow stem connector (318a,b) has a base and an outlet end, the tapered hollow stem connector (318a,b) is axially aligned with the suction arm stem and the base of the hollow stem connector (318a,b) is coupled to the outer end of the suction arm, and the tapered hollow stem connector (318a,b) has an outside diameter that decreases from the base of the hollow stem connector (318a,b) to the outlet end of the hollow stem connector (318a,b); the suction arm stem has a proximal end and a distal end, the suction arm includes a tapered hollow stem connector (318a,b) adapted to frictionally fit into a section of tubing, the tapered hollow stem connector (318a,b) has a base and an outlet end, the tapered hollow stem connector (318a,b) is axially aligned with the suction arm stem and the base of the hollow stem connector (318a,b) is coupled to the outer end of the suction arm, and the tapered hollow stem connector (318a,b) has an outside diameter that decreases from the base of the hollow stem connector (318a,b) to the outlet end of the hollow stem connector (318a,b); a one-way valve (650, 650a) interposed between the outlet end of the hollow stem connector (318a,b) and the proximal end of the suction arm stem adapted to allow fluid to flow in one direction through the suction arm stem from the base of the hollow stem connector (318a,b) to the outlet end of the hollow stem connector (318a,b); a delivery arm having a delivery arm stem, wherein the delivery arm includes a threaded small-bore connector at an outer end of the delivery arm; and a convergence arm having a convergence arm stem, wherein the convergence arm includes a connection port adapted to receive a multiple lumen tube, the delivery arm stem is in fluid communication with the convergence arm stem, and the suction arm stem is in fluid communication with the convergence arm stem and the delivery arm stem, wherein an interior annular neck defines a linking channel in the convergence arm. the convergence arm includes a connection port adapted to receive a multiple lumen tube, the delivery arm stem is in fluid communication with the convergence arm stem, and the suction arm stem is in fluid communication with the convergence arm stem and the delivery arm stem, wherein an interior annular neck defines a linking channel in the convergence arm.