The Principles of Medical Device Decontamination

Checkpoint

Answer

Water Supply and Pipework (including Distribution Rings): l Check the pipework materials. Are they copper, stainless steel or plastic? l What type of joints and fittings are in use as some types or designs can promote growth? l Are all water fittings to WRAS standards? l Are there problems and growth in any nearby water outlets such as mixing valves if fitted, especially joints/O rings etc. Supply/Rinse Water Treatment (either supplied to the EWD or those supplied with (in) the EWD): l Identify what type of water treatment plant is being used: ◊ Softened? ◊ High level filtration? ◊ Reverse Osmosis (RO) plant? ◊ Water scavenging plant? ◊ Water dosing system directly into the pipework system to machines? l Check the maintenance records of whatever treatment plant is fitted l Local Softening: (if required after carrying out tests) ◊ Is there a requirement for softening? ◊ Has the water supply been tested and checked for hardness? ◊ Does the Hardness value comply with both guidance and machine\process chemical requirements?

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