A treatment method for dialysis patients in which the patient’s blood flows through plastic bloodlines into a special filter, the dialyzer. In the dialyzer, waste products from metabolic processes and excess water are removed from the blood and transported away in the dialysate. Afterwards, the purified blood is returned to the patient’s body. The process is controlled by a hemodialysis machine that pumps blood, adds anti-coagulants, regulates the purification process, and controls the mixing of the dialysate and its flow rate through the system. A patient typically receives three treatments per week, each lasting between three and six hours.