Expert Review Been using this for 20 years - General Ecology XL Water Purifier

I'm a Professional Maine Guide and have been using the same First Need for over 20 years on camping and canoe trips. I have not had any real problems with it that a quick back flush in camp didn't fix. A pre filter and/or pumping from a bucket to let sediment settle will extend filter life. It can be a puzzle to reassemble the first time you back flush but it's not hard to figure out after that

This review was written in the old system and had content requirements that are different than reviews written today.