Reagent reservoirs and related systems and methods

An apparatus comprising:

• a system, comprising:
• a pneumatic interface;
• and
• a receptacle;
• a liquid reservoir receivable within the receptacle and having:
• a body comprising a top surface comprising a fluidic opening, a storage chamber having an opening at the top surface, a fluidic sinus, and a side of the body defining an outward-facing groove, the fluidic opening fluidly coupled to the groove, and the fluidic sinus fluidly coupling the storage chamber and the groove,
• a cover secured to the side of the body, the groove and the cover defining a sipper fluidic path, the fluidic sinus is positioned adjacent a bottom surface of the storage chamber, the fluidic sinus fluidly couples the storage chamber and the sipper fluidic path;
• a lid assembly coupled to the top surface and having a first portion covering the opening of the storage chamber and a second portion covering the fluidic opening, the top surface and the first portion defining a plenum,
• the first portion comprising a pneumatic port fluidly coupled to the plenum;
• and
• the second portion comprising a fluidic port fluidly coupled to the fluidic opening, the sipper fluidic path extending from the fluidic sinus, along the side, and toward the fluidic opening;
• and
• a cartridge assembly, comprising:
• a fluidic interface removably couplable to the fluidic port;
• a well;
• and
• a channel fluidly coupled between the fluidic interface and the well.