Thanks! <img src="/images/graemlins/grin.gif" alt="" />

I can honestly say that I am concerned about all of the above. However, when do the risk factors out weigh the practicality of a certain water filter?

I don't want to spend a fortune on a filter that will do every bit as well as the $75.00 acme brand. I also don't want to spend $75.00 every time I have to use it because it was so cheaply built it breaks upon use. In a nutshell I am getting as much info from people that have experience and can give me enough input that I can make an informed purchace.

With that said... What do you have in your BOB?

Pretty cool, but I think I want something that I will be able to fill my Camelback or use to re-hydrate my food. Thanks for the effort though
Epi

I've used the Katadyn filters for a while now. If you're considering the "Hiker" model, you might also look at the "Guide" model. It is a little larger, but, filters more water faster. We broke the pump handle off our Hiker model, and replaced it with a Guide filter. You can now get an inline attachment for the Guide so you can put it on top of a widemouth 1L Nalgene bottle and pump directly into the bottle.

Since you are concerned with both biological and chemical contaminants, you can narrow the field down to primarily filtering devices. Products such as the Steri-pen, MIOX, AquaStar and most chemical agents are designed only for biological contaminants. There is at least 1 chemical chelating agent designed to reduce chemical contaminates, but I would not recommend that product for personal use.

Many have already posted the better known, tested and established products, which will likely serve your needs. When selecting a particular model, also consider the anticipated needs of potable water. It might be better to select a model that has a higher output then you anticipate, as your needs for both you and any traveling companions might be higher then expected.

If possible, go to a local REI or similar store and talk with the staff, play with the display models and look at both the accessories and replacement items (filters, chemical additives, etc.) before buying.

As to what I carry:

I have several systems that I have and use. My main use has been during my trips to Ecuador. My personal and primary system is a Katadyn Exstream Purifier, which I carry everywhere, including the plane. I also carry in my check-in luggage a MIOX, MRS Sweetwater Purifier System and a Steri-Pen. Keep in mind; I am the “go-to-person” on our medical missions, so I have redundant systems for many applications. I have used the various systems to generate both drinking water for the group and water for medical applications (wound/ear/eye- cleansing/irrigation, etc.).

Pete

Again... take a real hard look at the MSR pumps.

Troy

agreed with the MSR comments...........i have been using their products for years...................other than the steri pen....i primarily use the miniworx

Another vote for the MSR WaterWorks. I've used the big one for years, but I haven't upgraded to the EX filter yet. I also use the membrane element on mine.