I originally posted this over on the crazy guy on a bike forums, but am posting here too in the hope that someone who is familiar with the route might pipe up. If not is there any chance the question could be forwarded to Bil Paul?
I carried a filter for a portion of the TA before sending it home. My plan was to leave it home for the Sierra Cascades Route. A few folks have suggested that on this route it might be worth carrying.
My daughter pointed out that while we only used it a few times on the TA, on this trip much of the route is similar to the portion of the TA where we actually used the filter. She also pointed out that sometimes it makes safe but nasty tasting water more palatable. I know that I have trouble staying hydrated when the water tastes nasty, so that could be a significant advantage. Her opinion was that we should take it and she is usually the sensible one on the tour
I have an MSR Sweetwater filter and as filters go I like it fine. Is it worth the extra 11 or so ounces, considering that the filter will be shared between the two of us?
Will it offset the need to carry as much water on this particular route? If so it could possibly actually reduce the load carried.