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First Need XL Water Purifier
I have a First Need filter and have not used it for over 15 years,...
By Rich Cleary
Ranked #317 - Trail Running Hydration
September 18, 2011
I have a First Need filter and have not used it for over 15 years, only has processed maybe 10 gal of stream water. Is the filter still good, or has something inside degraded. I also used the prefilter unit.
View Details: First Need XL Water Purifier
Helpful Votes: 0 Yes
By Ian Pickard
Ranked #73 - Trail Running Hydration
September 18, 2011
Rich, I had the same situation 2 years ago. My dad had bought a first need fileter when he went to the boundry waters in the 90's. He only used it once, cleaned it, and then put it away. I needed a filter so I tested his that was more than 10 years old with blue food dye. You add the dye to the untreated water, pump it through your filter, and if you see blue in your treated water the filter needs to be replaced. Try this test and don't risk it if you see any blue. My filter failed and I ended up buying a new one.
Helpful Votes: 0 Yes
Change me.