The Hyperflow skimps on size and weight while maximizing efficiency and convenience.
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Share your thoughts
- Familiarity: I've used it several times
I've had this filter since late spring ('12) and have used it several times over the summer on weekend backpacking trips. I haven't had any clogging/ freezing issues that were noted when this filter first came out, and the weight saving vs. some of the other filters on the market is great. Like just about every MSR product I've used, this comes apart into about 6 pieces so servicing it in the field isn't that much of a chore. When using this on a 1-2 night backpacking trip, I generally won't bother with backflushing it until I get home, unless the water is particularly dirty or I'm with a larger group. It is a little more needy than some of the other more bulky filters on the market, but I haven't had to put enough effort into keeping it going to outweigh the benefits.
One other nice touch - the outlet for fresh water fits exactly with the end of a Camelbak hose with the bite valve removed. This is great for a mid-day water break because I can refill my Camelbak without taking it out of my pack. It also reduces the likelihood of spilling water when pumping in camp.
I've got a couple other reviews and comments from throughout the last few years here somewhere, but here's the latest- I am so done with this filter! I owned one of the very first of these sold to the public and it's been a constant mix of really good and really bad ever since. Worked fine at times, but it was always something- filter issues, back flushing issues, cartridge replacements long before they were due (even pumping from pristine sources), dropping and chasing small and numerous parts in creeks issues, pumping problems like vacuum locks and low flow rates... and finally, on our last trip, four strokes and failure (piston froze up almost completely)...my Hyperflow was dead weight that never left my pack again. We would have been totally screwed without another system or boiling. Totally pointless at that moment. I was pissed and irritated for the last time. Now, I do love my MSR Autoflow (the last trip's savior), and when that's not enough, I use and invariably rely on my Katadyn Hiker Pro. I wanted to like this, but the little problems that I was initially willing to overlook just got to be more than I was willing to deal with anymore. We have to trust our filters, and this gets too sketchy sometimes.
If you're looking for something to use one weekend a year for one person, you're in luck. If you plan to use this more than once in a blue moon, forget it.
I bought this last year while hiking the Appalachian Trail. It pumped Great for the first day or 3, filtering about 3 to 4 Liters of water, once a day.
By the end of the 6th day, it was Very difficiult to use. By the end of day 9, it was straight up trash! It is impossible to backwash!
MAYBE you can backwash it if you saved the stupid Nalgene adapter & actually carry a heavy Nalgene bottle (sorry, 99% of thru-hikers drop these way before the 1/2 way point).
I wouldn't recommend this to anyone.
Great filter if you need a pump, but when you don't... consider a Sawyer squeeze filter ;). Even lighter and a MUCH longer cartridge life!
Small, simple, does the job. Yes.
Our lightest, smallest, and fastest-pumping filter. The best choice for fast and light backcountry use.
Our lightest, smallest, and fastest-pumping filter. The best choice for fast and light backcountry use.
I have used this filter for 2 years now with out any problems. I still have the original filter in it. (I keep an extra one on hand just in case). During the summer it gets used on a regular basis. It has never let me down and i have never gotten sick. I will take this on a 4 day kayak trip with out any worries. The key is to try and use flowing water. If you stick it in a mudd puddle ya it gets clogged easier.
If you back flush it... It Rocks!
Made for more than tiny Day Bottles...
10 liter dromedary bag has been my best satisfaction or any bag you don't mind loosing a bit of back flush water from.
I don't know where all these negative reviews are coming from... Perhaps improper use? I go canoeing and hiking regularly in the summers every year and my buddy always brings this filter. We have NEVER had a problem with it. There have been times where it became difficult to pump, at which point we back flushed it and WHAMO! back to normal. We now use the hyperflow gravity adapter kit and go through roughly 16-25 liters of water per trip, depending on the amount of people, if not more. We have still never had a problem. And just to show I'm not an MSR fanboy (really I ain't, i try and use the best gear possible regardless of brand), We have used the MSR mini works, Katadyn Pro, Katadyn hiker, Katadyn Vario dual (the worst out of the bunch) and the Katadyn pocket micro filter. What can I say my buddy has a filter fetish. In any case this one has performed the best and longest out of them all. Plus it packs pretty small and is relatively light.
I would say that the individuals who wrote these poor reviews either had defect products, or perhaps weren't backflushing enough. The only draw back to this product is that you have to backflush it often, but its worth it. If you care for the product as instructed it will not fail you.
4 out of 5 stars because of the constant flushing.
Summary: 5 trips over 16 months; 3 brand new Hyperflow filter cartridges; 38 to 45 liters of total water filtered before failure of all three cartridges. I even added a MSR SiltStopper ahead of the 3rd brand new cartridge and it failed just as quickly. (Note: I'm a mechanical engineer and I followed recommended back flush intervals and techniques "by the book")
I like the Hyperflow specs on paper but field use tells a different story. Im afraid that I need to give up on the MSR Hyperflow product and move on.
This filter was a dream. Superlight, super fast, not overly bulky. Not the easiest to pump but that doesn't seem like a problem all things considered. Brought it on my AT thru last summer and loved it for the first week, backflushed when recommended, it acted like expected. Then, around week 2, the one way valves blew inside out. I flipped them around, expecting this to be a fluke as I was using the regular backflushing schedule, but it kept happening. Talked to MSR, they sent me a new unit. Used the next one for another week, then it kept happening again. After talking to other thru's, many experienced the same story. Good idea but you gonna have to carry some chemicals (Aquamira is best) anyway cause this thing isn't reliable, so you might as well use them. Or go with the Katadyn Hiker Pro or MSR MiniWorks EX. Both are tried and true and work great for extended trips.
Oh, and read all the positive reviews. "Just used this for the first time..."
Just used this filter for first time and loved it!! Filters very fast! Used it between two people for 7 days and never gave us trouble. only had to backflush once. Although, I will say that all the water sources were crystal clear, so pretty sure that helped a bunch. Very easy to use and lightweight. You have to be patient when backflushing which is why I only gave it four stars. Takes a few minutes to start to pull water through filter when backflushing, but again, didn't have to do that much. Bottom line great filter and no fuss if your water source is free of debris and sediments.
If weight is the most important aspect of a filter, then maybe this one is for you. But that isn't without sacrifice...
Backflushing it often gets tiresome. When your tired, and the water is cold, you really aren't going to want to spend your time with the backflushing routine.
The cartridges are small, and need to be replaced more often. Also, always carry a spare cartridge on any long trips. It will get to the point that it almost wont flow through the old cartridge even if backflushed regularly.
I wouldn't buy this unit again and I wouldn't recommend it to a friend. But, I can see how it's inconveniences could be worth it for the weight conscious.
My husband and I bought this filter on the reccomendation of a fellow hiker and we love it! We haven't had any issues at all with it. It's very compact, light and simple to use. We used it all last summer with no problems. We are only using it for two people so maybe a larger group wouldn't have as much luck but for two, it's awesome.
As I look at reviews at Back Country and other retailers I notice that there are a lot of negative reviews for the HyperFlow, but generaly positive reviews for the AutoFlow Gravity Filter. They both have the same underlying filtering technology, they both require back flushing, yet the reviews are very different. Does this indicate a fundamental problem with the AutoFlow?
One you don't have to pump. Also this one had a problem prior to 2009.
so, with all these bad reviews, how good is this filter, and is their anything better for about the same price?
The filter isn't "bad" per se, it just has a limited range of use: 1-2 person trips in areas with fairly clean water. It is incredibly light and small, and mine has worked quite well for me. I haven't experienced any problems with clogging or diminished flow, although I would have to disagree with the quoted L/min rates.
My new favorite water purification system - Aquamira - is much cheaper and more versatile. If you have your heart set on a filter, obviously it isn't for you, but I find that it is more convenient, efficient, lightweight, and economical and the chemical flavor is minimal.
I'll agree with Simon on the flow rate being a little slower than stated, but it is very compact and aside from a Steri-Pen or Miox, it's the lightest thing going. To be fair, the first reviews came from a time prior to the recall of defective filter cartridges. The problem is now solved. I've had mine since they first became available years ago, went through the recall and replaced the defective cartridge, pumped hundreds of liters of water since then without a problem, and only had to install a new one this last season.
Depending on your water needs on the trail, I've been absolutely thrilled with my MSR AutoFlow. Somewhat of a different animal, but flawless performance, easy all the way around, fast, and best of all, it's something where gravity actually works in my favor.
I have NEVER had a problem with this filter. I have used it as the primary filter on several (we had secondary water treatment should it fail) on a week long trips with a party of 4-5 and it hasn't missed a beat. The water sources i have used have been from clear running streams to skunky potholes. I do tend to use a coffee filter to help the system from gunking up too quickly and that seems to work great.
My experience with this pump has at first been great but that was short lived. At first i thought that it must have been a recalled filter but after my last four day trip with a new filter from campmor the same result. All directions were followed and the same frustration, slow to no water and the back wash didn't even work after eight liters. Do a yourself a favor and DO NOT BUY! or you could just bring a lot of fuel to boil water or stick to the tried and true iodine.
I carry this filter with me on hikes and long trail runs. It is an easy to carry size when weight is at a premium. I haven't experienced any of issues others describe and have been using reliably for two years. It take a little while to get used to the process, but your speed with the filter improves with time. My only gripe is that there isnt an adapter that fits to a camelbak opening.
This is a great filter. Of all the filters I have used this is my favorite. Easily maintained in the field, pumps like no other and lasts. The Specs at the side are wrong...
The Hyperflow can be used as a gravity flow system.