An extracorporeal blood filtering machine can include a blood circuit, an effluent circuit, and a source fluid circuit and can be controlled by a controller. The extracorporeal blood filtering machine can also include access ports for connecting the source fluid circuit to the blood circuit, as well as blood sensors to detect possible issues with the extracorporeal blood filtering machine. The extracorporeal blood filtering machine can include density sensors and flow sensors that enable it to be more accurate and to operate while being transported. The extracorporeal blood filtering machine can further include a user interface and can display fluid inflow/outflow information. A medical fluid container can automatically empty after being filled. An apparatus for supporting a medical fluid container can include a hanger and an attachment member with the apparatus able to adjust to ensure the medical fluid container remains properly oriented directly under a medical fluid container scale.

A sorbent cartridge for filtering dialysate in a dialysis system is disclosed. The cartridge can include a fluid inlet, a fluid outlet, a plurality of sorbent materials arranged in series between the fluid inlet and the fluid outlet, and a recharging solution disposed in a container. Each of the plurality of sorbent materials can be disposed in a respective replaceable container. The plurality of sorbent materials can be arranged for fluid flow in a longitudinal direction of the respective replaceable container. The recharging solution can be selectively fluidly connected to one or more of the plurality of sorbent materials.

Systems and methods for renal insufficiency treatment that include identifying and associating a solution container with a container support in the systems and methods are described herein. The systems and methods may associate an identified solution with an identified container support and verify compatibility of that combination with a selected treatment to reduce the likelihood for errors during setup and use of the systems and methods.