Where is it mentioned of keeping this water line disinfected? Where can I find the recommendation?
Check G.4 of AAMI 23500, Special Considerations for Acute Haemodialyis, Microbial Control Strategies.
Because the line supplying water to the dialysis machine is not disinfected when the machine is disinfected, this line should be disinfected when the reverse osmosis system is disinfected and consideration should be given to replacing this line on a regular basis, such as yearly. Opaque tubing
is preferred for this line to reduce the likelihood of algae growth; however, the tubing is to be approved by the
You can also refer to V-220 of the CMS Regulations which directs you to AAMI RD52:2004 7.1. This is what's enforced by CMS and the Joint Commission. It states:
"For most dialysis machines, routine disinfection with hot water or with a chemical germicide connected to a disinfection port on the machine does not disinfect the line between the outlet from the water distribution system and the back of the dialysis machine. Users should establish a procedure for regular disinfection of this line. One approach is to rinse the dialysis machines with water containing germicide or hot water when the water distribution loop is disinfected. If this procedure is used with a chemical germicide, each dialysis machine should be rinsed and tested for the absence of residual germicide following disinfection."
Chuck Weddle, CHWS Certified Hemodialysis Water Specialist Technical Manager Independent Dialysis Foundation, Inc.
DISCLAIMER: The views I express are mine and may not be the same as my employer.