Section4, page 4 item 8 operators manual, (rev K) states verbatum:
CAUTION: An AAMI standard purified water (RD5) analysis is recommended no less than every three months.
Some companies-Davita to name one- do not follow that recommendation. Is it worth not following manufacture recommendations when dealing with peoples lives?

quote:

Originally posted by Florian:
The only time a surveyor should require a matching date on a filter change and the AAMI analysis is when the RO membrane is changed.

Thank you, this helps alot!

I apologize 1/4 I thought you were talking about testing the Granuflo vs. the RO water. We do AAMI testing every 3 months as well.

How do we discern when our water quality supply might be at its worst? We are in Grand Rapids, Michigan which gets its city/tap water from Lake Michigan and seasonal variation is a variable as it takes months for river spring runoff to even remotely get to the water inlet 80 feet down and 2 miles from shore. Does every state have different requirements for the AAMI test?

Who made your rules? AAMI? We do an annual AAMI water test and when a membrane has been changed. I have been interviewed by JACHO surveyors and showed results and not once have they questioned the annual test. Maybe because we are a hospital. I maintain a large loop system as well as many portable RO machines and annual is all that has been required.

As far as rumours, I would be investigating it a lot more before I changed any policy or procedure in my facility.

Endoxtins filters are in my loop system and separate from the RO part, an AAMI would have nothing to do with the loop.

chettrick -

Why would you say that AAMI has nothing to do with your loop? AAMI has everything to do with your loop! Have you heard of a Water Velocity Requirement, cultures, and endotoxin testing of loop? AAMI came up with these recomendations and state enforced them.

AAMI has alot to do with the technical side of the operation,machine maintenance,WATER TREATMENT-just about every aspect

quote:

Originally posted by chettrick:
Endoxtins filters are in my loop system and separate from the RO part, an AAMI would have nothing to do with the loop.

I think that he meant JCAHO would have nothing to do with his LOOP. "State of _________ (AAMI's Soldiers)" would. There are alot of regulations that are mandatory chettrick. You may want to read up on that.

-OR-

Maybe I am just reading your post wrong? Sorry for being blunt! No disrespect intended.

he said "an AAMI which I interpret as meaning an AAMI analysis not the dictatorship AAMI organization.

Chuck

Some peoples' kids. Read the post! He meant that you do not need AAMI panels drawn on your loop water just cultures for endotoxins and bacteria. AAMI panels are taken annually, quarterly or whatever your state requires on the RO and city water for contaminates such as calcium, magnesium, etc. ("Chemical Contaminant Levels"). When you test your RO permeate water that covers your loop.

Guest,

Thank you for pointing out my inner-child. Some people just like to argue you must be from New York or something. Our guidelines that are enforced (in the state of Texas) states you must "Draw an AAMI analysis at three DIFFERENT sources: ***shortening*** CITY SAMPLE, PERMEATE, AND THE END OF YOUR LOOP." Of course, take water cultures and LAL's that's a given Guest. The CCL doesn't have anything to do with frequency. You can test as much as you want to what I understand as long as the RO is drawn at least every 3 months.

Chuck,

Thank you for clearing that up.

Ok, found the reg.

V201;

ANSI/AAMI RD52:2004 Requirements as Adopted by Reference 42 CFR 494.40 (a)
6.2.7 Reverse osmosis: Chemical analysis: frequency
Chemical analysis for the contaminants listed in 4.1.1 (Table 1) should be done when the RO system is installed, when membranes are replaced, and at not less than annual intervals thereafter to ensure that the limits specified in 4.1.1 are met (see Table 1). Chemical analyses should be done when seasonal variations in source water suggest worsening quality or when rejection rates fall below 90 %.
Additional Guidance:
If your state has more stringent requirements, those must be followed for this requirement to be met.

Thank you all for you help.

San Augustine,

It seems that you have answered your own question, kudos. As far as my last post I was referring to Puristeril's comment in regards to Chettrick's reply. It had nothing to do with you other than your original question.

Am I confused or did I read that some clinics still use the .2 filter post RO/DI? I was under the impression as of Oct 1st all clinics had to switch to the .05 filter? Am I wrong and did we start using a more expensive .05 filter when the .2's were performing perfectly fine?

ANSI/AAMI RD52:2004 Requirements as Adopted by Reference 42 CFR 494.40 (a)
5.2.8 Deionization: require carbon pre & UF post
Systems that include deionizers as a component shall also contain carbon adsorption upstream of the deionizer to avoid formation of carcinogenic nitrosamines.
In all instances, deionizers shall be followed by an ultrafilter or other bacteria- and endotoxin-reducing device to remove microbiological contaminants that may originate in the deionizer resin bed.
ANSI/AAMI RD52:2004
5.2.8 Deionization
Refer to RD62:2001, 4.3.6 Deionization: Feed water for deionization systems shall be pretreated with activated carbon adsorption, or a comparable alternative, to prevent nitrosamine formation.
Refer to RD62:2001, 4.3.6 Deionization: If a deionization system is the last process in a water treatment system, it shall be followed by an ultrafilter or other bacteria- and endotoxin-reducing device.
5.2.9 Ultrafiltration
Endotoxin-retentive ultrafilters should be placed in dialysis water systems in locations downstream of deionization, if deionization is the last process in a water treatment system.
Additional guidance: Endotoxin-reducing devices and endotoxin-reducing ultrafilters may be used interchangeably in these applications. The typical range of micron filter size is .001 to .05 microns.