Product Name:

MSR HyperFlow Microfilter
Manufacturer: MSR
Group Name: Water Treatment
Weight: 221.0 Gram(s)
Cost (MSRP): $96.00 CDN
Hitcount: 1083
ReviewScore:

Description

Filter water faster with minimal pumping effort. This lightweight, ultra-compact, high-flow system filters down to 0.2 micron, removing 99.99% of all bacteria and protozoa. The output is a considerable 2.75L of water per minute.

Features

* Hollow fibre technology uses proprietary polymer fibres to create a high surface-area filter that allows water to flow quickly through a 0.2 micron effective pore size.

* A quick-connect adapter attaches the filter to any bottle or reservoir with a standard 63mm threaded opening.

* The polycarbonate filter body is tough, compact and light in weight.

* Silicon input hose with pre-filter.

* Field maintainable, can be easily reconfigured to allow backflushing for flow recovery. No tools required for complete disassembly.

* Note: These fibres are slightly more brittle than other filter materials and somewhat more susceptible to damage from strong impact. Although the cartridge is protected by the polycarbonate pump body and has been drop-tested to three feet, you should consider carrying a spare cartridge on long trips – they are small, light, and relatively inexpensive. Do not allow the cartridge to freeze after initial use.

Photographs

Review(s)Note: You can edit your own reviews after login. Add New
 
Title: New benchmark for weight & flow rate
Score:
Written by: ChuckLW Created Time:10/8/2009 1:10:17 AM
Strengths: Very small, light and high flow rate
Weaknesses: Must avoid dropping and freezing. Requires frequent maintenance
Conclusions: This simple, tiny unit manages a high flow rate with modest effort. The low weight (equivalent to 1/4 litre of water) and ease of use allows one to substantially reduce pack weight where sources of water along the trail are readily available.

Edit: 1st 2-night trip and continue to be very impressed. I was pumping from a large bucket (Garibaldi Lake shelter) and laid the pump down on the counter beside the bucket for a couple of minutes. Noted that a steady low flow continued as a result of a siphon having been established.

Edit 2: After 3x 2-night trips & 1x 3-night trip have noted that the recommended maintenance of back flushing every 10 liters or so is very important. This involves unscrewing unit and reversing 2 little check valves, pumping in reverse direction with clean water, and then unscrewing again to reorient the valves properly for normal flow. I skipped this after one trip and experienced dramatically increased pumping effort as a result. Also, during the back flush procedure it is very easy to generate an air lock that requires that you reverse the whole procedure yet again. I think I've got the knack now but it's definitely a finicky unit. This is all easily managed for weekend use when you can do the maintenance at home but for longer trips, it would add significant hassle in the field (since you must use clean water to back flush). In spite of this, the low weight and tiny size continue to make this my pump of choice. For large parties or extended trips you may want to consider a more robust but bigger and heavier unit.
Review Based on: 2 Year(s)
Title: Best filter
Score:
Written by: johngenx Created Time:10/13/2008 6:03:37 PM
Strengths: Light, fast flow rate, field servicable
Weaknesses: Periodic service
Conclusions: MSR supplied one of these for a day's trail, so I gave it the best workout I could think of. Took it to a local park and filtered the super-murky pond water. Flow rate was super, the filtering was excellent and the size and weight of the unit is terrific. It uses a fiberglass filter system not unlike some modern municipal treatment systems. I had several other units for comparison, and the HyperFlow was my favourite by far.

I have never filtered my water (use Pristine) and so was a "filter virgin" with the group of products.

All the filters need upkeep (scraping, etc) but the HyperFlow is a tad fussy in that regard. Otherwise, it would be a fiver on the stars for sure...
Review Based on: 1 Day(s)