When every gram matters, selecting the right water filtration system is crucial for ultralight backpackers. An efficient, lightweight water filter not only reduces your pack weight but also ensures you stay hydrated and safe on the trail. In this article, we'll compare two popular ultralight water filtration setups:

• Platypus QuickDraw Microfilter System
• Sawyer Squeeze paired with CNOC Vecto

We'll delve into their features, pros, cons, and discuss the significance of filter pore sizes (0.2 vs. 0.1 microns). We'll also address concerns about viruses, heavy metals, and toxins like those from cyanobacteria (blue-green algae), incorporating insights from health authorities like the CDC.

Why an Ultralight Water System Matters

• Weight Reduction: Less weight means you can hike longer distances with less fatigue.
• Efficiency: Quick and easy water filtration saves valuable time during your hike.
• Safety: Effective filtration protects you from waterborne pathogens.

Understanding Micron Ratings in Water Filters

CDC Guidelines

• Minimum Filter Size: The CDC recommends a filter pore size of no larger than 0.3 microns to remove bacteria and protozoa. However, this size won't remove viruses, hydrocarbons, or heavy metals.

Common Backpacking Filters

• 0.2 Micron Filters (e.g., Platypus QuickDraw):

  • Remove bacteria (e.g., E. coli, Salmonella) and protozoa (e.g., Giardia, Cryptosporidium).
  • Suitable for relatively clean, high-elevation water sources.
  • Faster flow rates due to larger pore size.

• 0.1 Micron Filters (e.g., Sawyer Squeeze):

  • Claimed as 0.1 microns absolute, meaning the maximum pore size does not exceed 0.1 microns.
  • More effective at removing smaller bacteria that might pass through larger pores.
  • Can, in theory, remove some larger viruses, but not those typically concerning in U.S. backcountry water.

Limitations

• Viruses: Neither 0.1 nor 0.2-micron filters effectively remove viruses. Viruses require a filter pore size of 0.01 microns or additional purification methods.
• Chemicals and Heavy Metals: Standard hollow fiber filters do not remove hydrocarbons, heavy metals, or chemical contaminants.
• Cyanotoxins: Toxins from cyanobacteria (blue-green algae) are not removed by these filters.

The Need for Additional Water Treatment

• Chemical Treatments: Carrying a backup chemical method (e.g., chlorine dioxide tablets) is advisable, especially if you might collect water near overused campsites, bathing areas, or livestock zones.
• Activated Carbon Filters: Can help reduce chemicals, heavy metals, and some toxins, including those from cyanobacteria.

Note: While dehydration poses an immediate risk, consuming contaminated water can lead to illness. Always assess water sources carefully.

Option 1: Platypus QuickDraw Microfilter System

Overview

The Platypus QuickDraw Microfilter System is a lightweight, fast-flowing water filter that includes a durable 1L QuickDraw Reservoir. Weighing just 3.3 oz (95 g), it's ideal for hikers who prioritize speed and simplicity.

Key Features

• Ultralight & Compact: Entire system weighs 3.3 oz and packs small.
• Filter Pore Size: 0.2 microns, suitable for clear, high-elevation water.
• Fast Flow Rate: Filters up to 3 liters per minute.
• Easy Maintenance: Shake-to-clean or tool-free backflush.
• Versatile Compatibility: Dual-thread design fits the QuickDraw Reservoir, Smartwater bottles, and other 28mm bottles.
• Effective Filtration: Removes 99.9999% of bacteria and 99.9% of protozoa.

Pros

• Fast Filtration: High flow rate saves time.
• User-Friendly: Easy to fill and clean.
• Lightweight System: Minimizes pack weight.
• Durable Design: Reservoir made from taste-free, robust material.

Cons

• Filter Pore Size: Less effective against smaller bacteria; does not remove viruses.
• Lower Capacity: Filters up to 1,000 liters, less than some competitors.
• Not Effective Against Viruses or Chemicals: Does not remove viruses, heavy metals, or chemical contaminants.

Best For

• High-Elevation Hikes: Where water sources are cleaner with lower contamination risk.
• Fast-Paced Hikers: Who value quick filtration and minimal weight.

Option 2: Sawyer Squeeze Paired with CNOC Vecto

Overview

The Sawyer Squeeze filter combined with the CNOC Vecto water container is a popular choice among thru-hikers. The Sawyer Squeeze weighs 3 oz (85 g), and the CNOC Vecto adds 2.6 oz (74 g), totaling 5.6 oz (159 g).

Key Features

• Filter Pore Size: 0.1 microns absolute, ensuring no pore exceeds this size.
• High Filtration Capacity: Filters up to 100,000 gallons (378,541 liters).
• Ease of Filling: CNOC Vecto's wide mouth simplifies water collection.
• Versatile Use: Filter attaches to the CNOC Vecto, standard bottles, and hydration packs.
• Effective Filtration: Removes 99.99999% of bacteria and 99.9999% of protozoa.

Pros

• Enhanced Filtration: More effective at removing smaller bacteria.
• Long Lifespan: Rarely needs replacing due to high capacity.
• Versatility: Compatible with various containers and systems.
• Suitable for Varied Water Sources: Better for areas where water may have higher contamination levels.

Cons

• Heavier System: Slightly more weight compared to the QuickDraw.
• Slower Flow Rate: May require more effort to filter water.
• Regular Maintenance: Needs backflushing to maintain flow rate.
• Not Effective Against Viruses or Chemicals: Does not remove viruses, heavy metals, or chemical contaminants.

Best For

• Low-Elevation or Higher Contamination Areas: Where water may contain smaller bacteria.
• Long-Distance Treks: Where filter longevity is important.
• Versatile Use Cases: Hikers needing compatibility with different hydration systems.

Comparing the Systems

Filtration Effectiveness

• Bacteria and Protozoa: Both filters effectively remove common pathogens found in U.S. backcountry water.
• Viruses: Neither filter effectively removes viruses; however, waterborne viruses are generally not a concern in U.S. backcountry settings.
• Chemicals and Heavy Metals: Neither filter removes these contaminants; additional treatment is necessary if these are a concern.

Flow Rate

• Platypus QuickDraw: Faster flow rate due to larger pore size.
• Sawyer Squeeze: Slower flow rate but offers finer filtration.

Weight and Packability

• QuickDraw System: Lighter and more compact at 3.3 oz.
• Sawyer Squeeze + CNOC Vecto: Slightly heavier at 5.6 oz.

Addressing Cyanobacteria and Other Toxins

• Cyanobacteria (Blue-Green Algae): Produces toxins not removed by standard hollow fiber filters.
• Activated Carbon Filters: Can help reduce some toxins, chemicals, and heavy metals.
• Recommendation: Avoid collecting water from sources with visible algae blooms. If unavoidable, consider using an activated carbon filter or chemical treatment, but be aware these methods may not fully eliminate all toxins.

The Importance of Backup Treatment Methods

• Chemical Treatments: Carrying chemical purification tablets (e.g., chlorine dioxide) is advisable, especially near overused campsites, bathing areas, or where livestock are present.
• Why It Matters: Dehydration can be life-threatening more quickly than most waterborne illnesses. However, consuming contaminated water can cause serious health issues. Having a backup ensures you can treat water from less-than-ideal sources if necessary.

Which System Should You Choose?

Choose the Platypus QuickDraw Microfilter System if:

• You hike in high-elevation areas with cleaner water sources.
• You prioritize speed, simplicity, and minimal weight.
• You value a fast flow rate.

Choose the Sawyer Squeeze with CNOC Vecto if:

• You hike in areas where water may have higher bacterial contamination.
• You prefer a filter with a finer pore size for added protection.
• You want a long-lasting filter with high capacity.
• You're willing to carry a bit more weight for increased filtration effectiveness.

Final Tips for Safe Hydration

• Assess Water Sources: Avoid water near overused campsites, livestock areas, or where people bathe.
• Carry Backup Treatment: A chemical method can provide additional protection against viruses and contaminants not removed by filters.
• Stay Informed: Be aware of environmental issues like cyanobacteria blooms in your hiking area.
• Test Your Gear: Familiarize yourself with your filtration system before your trip.

Igneous Recommends

At Igneous, we're committed to helping you carry less and go further. Your choice between the Platypus QuickDraw and Sawyer Squeeze depends on your hiking environment and personal needs.

• For cleaner, high-elevation trails, the Platypus QuickDraw offers speed and minimal weight.
• For areas with higher bacterial contamination, the Sawyer Squeeze provides finer filtration.

Regardless of your choice, consider carrying a backup chemical treatment for added safety.

Enhance Your Hydration System with Igneous Gear

Don't forget our Cap & Tether System—a 7-gram ultralight accessory compatible with most 28mm disposable water bottles like Smartwater bottles. It prevents cap loss and forms a convenient loop for easy carrying, streamlining your hydration setup.

Stay safe, stay hydrated, and happy hiking!

Explore more ultralight gear at Igneous Outdoor Gear.

Note: Always follow guidelines from trusted sources like the CDC. Ensure you're using appropriate methods to treat water based on your hiking environment. While dehydration poses immediate risks, consuming contaminated water can lead to serious health issues.