"Fool me twice..." - Review of MSR HyperFlow Microfilter

Worked great in sink, terrible on Vancouver Island's North Coast Trail and later (with a new one) on Vancouver Island's Strathcona Park. on the NCT, murky creek water clogged the filter and backflushing on trail would not improve pumping speed/effort within 60% of original levels. Thorough backflushing in sink at home returned filter to 80% of original pumping speed/effort. Replaced with a new one and took to the alpine (nice clean water) and had the same problems. Backflushing this time on the trail and extensively at home only replaced the unit to 60% of original values. Would not recommend this. IMO it's job should be to filter water for you, no matter where you are. It is amazingly light and small though (and originally pumped wicked fast)
View Details: MSR HyperFlow Microfilter >