Water Quality Question
Water Quality Question
(OP)
Anyone knowledgeable about Gram Negative Bacteria? I recently had some tap samples sent to a lab and they came back positive for Gram Negative Bacteria. Standard plate count testing done, results in 48 hours. Is this harmful for human consumption?





RE: Water Quality Question
http://en.wikipedia.org/wiki/Gram-negative
RE: Water Quality Question
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Legionella is an example of a small gram-negative rodshaped bacteria.
http://ww
RE: Water Quality Question
Gary Schreiber, CWS VI
The Purolite Co.
RE: Water Quality Question
RE: Water Quality Question
Interesting.
My report that came back states 80 CFU/ML -
Gram Negative Rods
Does this tell me anything?
However, a couple of them came back as "too numerous to count"
Also been reading Reverse Osmosis is not a good source for Gram Negative Bacteria removal.
Thoughts on this?
Thanks
RE: Water Quality Question
Does anyone know what the micron rating for a Diasafe Plus Ultrafilter is?
RE: Water Quality Question
I agree with the previous statement by Purewater guy:
"Also been reading Reverse Osmosis is not a good source for Gram Negative Bacteria removal."
Gary Schreiber, CWS VI
The Purolite Co.
RE: Water Quality Question
Current problem involves the current setup. 20" 5 micron Hytrex filter, followed by 2 Carbon units containing 1.2cft of Acid washed carbon each, followed by 2 units containing 1.2cft Mixed-bed resin each, followed by a 20" absolute rated 0.2 Filter, followed by a 20" 0.05 Ultrafilter. There is absolutely NO WAY I should be having any breakthrough at all. (I have also replace all the black 5/8" PE tubing connecting each component)
Looking for any and all input here. Theories, possible solutions, tried and true,,,
Spoke to Fresenius Technical Support about the Diasafe Plus Ultrafilter on their 2008K models, no luck there, they have to contact the German manufacturer, you would think if they have the ultrafilter on the machine they would at the very least know what the cutoff would be for micron rating ,,,,
I figured if the machine cultures are NOT coming up with gram negative rods then i should be able to mirror the micron rating prior to the machine thereby eliminating the possibility of any problem with gram negative rods ,,
Make sense?
Input much appreciated.