Re: RO water for final rinse AER

[Lalith Ramachandra]

Hello Jayne

In the new Palmerston Regional Hospital the water supply to the scope reprocessor (Cantel Medivator) was potable water filtered to 5microns and 1micron.

Need good water pressure and other pre filters in your water supply or they will clog up quickly.

The reprocessor has 0.4 micron and 0.1 micron filters on board.

And the manufacturer advised against using softened water. Specially with the resin Lewatit Monoplus S 107 NS as they leave a brown deposit.

RO water is very expensive and waste 50% of the input water.

Hope this helps.

Cheers

Lalith Ramachandra
Mech Engineer
LR Consulting Engineers
Darwin NT
Ph 0401117423

Sent from LR Consulting Engineers

> On 1 Dec 2020, at 3:37 pm, Michael Wishart wrote:
>
> [Posted on behalf of member – Moderator]
>
> Dear Brains Trusts,
>
> In our refurbishments for compliance to AS4187, we are installing new machines for our endoscopy equipment. We now have a decision to make regarding RO water for these machines. Question is do we install RO water for our AER final rinse water?
>
> In view of changes to AS4187 table 7.3 rinse water- washer disinfectors in accordance with ISO 15883-4 for thermal labile endoscopes, now does not mandate this and given manufactures are stating new equipment does not require it because of improved filter systems etc.
>
> Is your organisation installing RO water for the final rinse water for endoscopy for new machines?
>
> if your organisation was to install a new machine where RO water was not available, what would your advice be?
>
> Could I get please get some feedback for your reasons for and against RO installation or not?
>
> What are the issues or decision that made you come to decision for and against?
>
> Many thanks,
>
> Kind Regards
>
> Jayne O’Connor RN ,BSc.,Inf.Cont
>
> IPC Co-Ordinator
>
> Sydney Adventist Hospital | 185 Fox Valley Road, Wahroonga, NSW 2076
>
>
>
> p: +61 2 9480 9732 | f:+61 2 9470 8052 | m: +61 0406 752685 | e: jayne.oconnor@sah.org.au
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> http://www.sah.org.au
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