This may have been discussed before but I'd be interested to know how other hospital's estates departments views on connecting dialysis services with single RO and pre-treatment.
Our previous compliance officer was adamant we couldn't connect directly to any supply without Cat5 protection in place, making a distinction between the risk within a hospital compared to HHD.
I'm aware that some other hospitals are able to make these connections with lower protection. With evidence that this is being done elsewhere I might have a chance of convincing our new CO.
If your estates dept. allows you to use double check as backflow protection within the hospital then they are not enforcing it as a cat 5 risk. Double check is only acceptable up to cat 3.