MSR HyperFlow Water Filter

Comments about MSR HyperFlow Water Filter:

This pump has promise. A lot of us thought it was the long awaited replacement to th PUR/katahdin Hiker that's been around for 20 years. It works as advertised for the first 5 or 6 liters. Then you need to back flush and the filter is clogged and it won't back flush. It happened with my first filter and a replacement, both of which were purchased after the filter element recalls that we're supposed to fix the problem. Bottom line don't bother with this pump until MSR fixes the filter element issue.

Comments about MSR HyperFlow Water Filter:

I own several of these, and love the product. Some reviews talk about the pre-filter screen not staying down, I have not had this problem. The pre-filter screen has a velcro strap around it, we simply loosen the strap, and insert a small rock or stick to keep it in place. It is easy to prime, and lives up to the name of Hyper Flow. We have only used it in fairly clear, running water; and have never had a clog. As long as both of the valves are in the correct position/direction of flow, and the hose is not kinked, it is easy to pump. We usually fill either 4 liter or 6 liter dromedary bags, and usually two consecutively each time; they both are filled in a relatively short amount of time too. There is no plastic after taste (depending on the container you pump in to) or iodine taste that you get from other filters either. This way, we never run out of good tasting, clean cooking/drinking water in camp, or on the trail. We flush it with purified water or filtered tap water when we return home from our outings. Remember, there are two check valves that need to be turned to flush the filter. Also, take it very slow on the filter flush, you are basically forcing water through the filter "against the grain". Love this filter and flow rate! Happy camping!

Comments about MSR HyperFlow Water Filter:

The Hyperflow seemed great at first, the videos make it look so simple. I tried at home first to get it used, then this past weekend out hiking. The float does not stay upright so you have to reach in the water that you are trying to avoid touching, to flip it back. Connection to bottle is not great and leaks water like a spray. And if you watch the part about back filtering to clean it, it is very complicated. I love MSR products, but this filter is a bust.

Comments about MSR HyperFlow Water Filter:

We used two of these filters on a John Muir Trail trip. The filters were easy to use in any amount of water and performed perfectly.

Comments about MSR HyperFlow Water Filter:

I have used this filter for 3 nights out before it was unusable. I had purchased it because it could be backflushed. In order to backflush you just reverse the 2 check valves and pump clean water. Having reversed the valves I'm afraid I'd break it if I pressed any harder on the pump. The water I had been filtering looks clear, but it plugged up quickly. This is the worst filter I've had from a longevity standpoint. Over the last 20 or so years I think I've owned 5 other filters and used several more that weren't my own. I'll return it in the am.

Comments about MSR HyperFlow Water Filter:

So far, so good. I haven't died of water poisoning or anything. It's light, easy to use, and the water tastes good. The one possible con is that you really need a nalgene water bottle. This product would kinda suck without one.

Comments about MSR HyperFlow Water Filter:

easy to use. pumped water out of a mountain stream, in minutes i had my 70 oz. hydration pack filled.

not sure how fast the filter will clog in cloudy water, never had to try.

Comments about MSR HyperFlow Water Filter:

Went out for a 100 hike and this filter basically shut down after the first day. It was like pumping concrete. I have never had a MSR product be such a let down. MSR should give everyone a gift certificate for a filter of their choice.

Comments about MSR HyperFlow Water Filter:

My husband and I bought this for our 200+mile hike of the John Muir Trail this summer. We liked the lightweight small filter, apparent ease of use and previous good experiences with MSR quality. We tested it at home, made sure we knew how to do maintenance etc as the manufacturer required. At first we told ourselves that the daily back flushing would not be a big deal. Well let me tell you it was a big deal. Also, the pre filter silt screen only works with one side down. Yeah. How many people never pump from moving water that takes the thing and spins it all around. Terrible design on MSR's part. Not that much slower than other filters really but the big deal breaker was that you literally have to disassemble the stupid thing into 4 small parts, reverse some valves, reassemble it, back flush he filter cartridge and then reassemble it back. A very annoying thing to have to do in the wilderness where everything is dusty, etc. and you have to do it after about 8 liters. The worst filter money can buy for anything longer than a day hike!!!

Comments about MSR HyperFlow Water Filter:

I've used a range of MSR and other brand water pumps but this one clearly outshines the pack.
My use, over the last 3 years, has been to purify water during numerous back country outings (some up to 10 days). The water I pump is clear and appears potable so the pump is used to avoid ruining a good trip. I do not have experience using this pump in silty or high organic content water. I perform regular maintenance and the pump and filter have held up surprising well.
Maintenance is a breeze, pump volume is the best I've run across. I bought a spare filter but there is no need to change the original out, though I"ve pumped between 75 and 100 liters so far.
Finally, the carry sack just blew out along a seam and the kind folks at MSR promptly sent me a new sack without charge.
My hiking buddy has one also and dittos my sentiments.