I was wondering if anyone knows of any small dialysis units that opted to use small portable RO's at each station rather than getting a central water system?
The central systems seem to be getting much larger and much more expensive which got me to thinking that using a small central pretreatment setup and feeding that to the unit in place of the product loop would be much cheaper and easier to setup. A little more monthly sampling, but the maintenance could be done midweek and if one went down, you lose a station, not the whole unit.
We've done something similar in our hospital programs in an emergency. I think you may be underestimating the cost of WRO's though. The last ones we purchased 3 years ago cost about $9000 each for WRO300's (chemically disinfected). I suggest looking into a MRO from Ameriwater. The MRO2 we bought (also 3 years ago) was $12,700 including shipping. This RO runs 5 machines. The MRO's have a footprint of about 24" square.
AAMI considers any water system that supplies three or more points of use to be a central system. If I am reading your post correctly, your pretreatment setup would have to meet the same regulations as any central system regarding such things as EBCT for the carbon tanks, etc.
I take care of 12 hospital acute units and 11 of them are 4 stations only.
We are currently switching over to all EON machines with Rover carts for everything water and the B Braun dialysis machines.
We do keep a spare, and it's very easy to swap in and out if we have a down machine, one needs maintenance or we have to go to the open heart or icu. The nurses do the heat disinfecting on them and once a month I pop in and do what I need to do.