How to Have Clean Water While Trail Running

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You have never known dehydration until you have been running along your favorite trail and come upon a muddy puddle of water. Instead of being naturally repulsed, you weigh the pros and cons of taking a sip. Undoubtedly, that’s just gross, right?

Although, what is one to do when on a long out and back trail run and the water stores have run out, or worse, you didn’t pack any to begin with? Perhaps a crystal-clear babbling stream is a cleaner option for quelling your thirst? Unfortunately, this is not true, particularly if you like staying healthy.

All outdoor water sources are exposed to multiple forms of pathogens and toxins. So, how do you get clean water while trail running? Luckily, there are a few handy water purifiers made just for these circumstances.


Why Do You Need Purified Water While Trail Running?

Obviously, there are many reasons you need purified drinking water. Bacteria proliferate in nearly every nook and cranny of this world we inhabit. Even the cleanest-appearing water can contain billions of microorganisms looking for free room and board inside your body.

Wildlife Contamination

Though the idea of drinking water from a fresh, mountain stream while out on a run sounds like a bit of heaven, at the same time, we often forget how easily that water can be contaminated. Let’s begin with wildlife. Whether living in or near the water source such as a lake, stream, pond, or river, animals think nothing of defecating in or near said water. Need we say more?

In case the possibility of ingesting raccoon (a literal trash panda) feces along with that refreshing gulp of river water weren’t enough, consider that raccoon dying in or near that river. As far as we know, proper burials are nonexistent in the wild animal realm. In reality, wild animals land where they die, and sometimes that is in or near water sources. Have you considered that animal carcasses could be filtering the very water you wish to drink? Hard nope!

Microbe Contamination

Comparative to wildlife contamination, microbe contamination consists of all the super tiny organisms we cannot see in the water. Some of these microbes like Escherichia coli, or E. coli, are naturally found in soil and therefore can easily make their way into water sources via heavy rains and snow melts. These microbes can come from an array of sources including wildlife, human and domesticated pet feces, and runoff from farmer’s fields.

Industrial and Agricultural Contamination

This contamination usually comes in the form of toxins that have been accidentally or intentionally discarded near water sources. Things like chemical waste from industries, pesticides used on crops, and even car exhaust have a way of ending up in “fresh” water.

Health Risks

Additionally, if the pure disgust factor of ingesting any of the aforementioned contaminants from drinking stream water isn’t enough, consider the health factors. Symptoms associated with E. coli contamination alone, include vomiting, diarrhea, and fever. Some bacterial infections can be much more intense and require hospitalization or worse. Certainly, the brain-eating amoeba or flesh-eating bacteria rings a bell for someone! Moreover, toxins ingested from factory runoff can disrupt neurological processes. Yikes!


Types of Portable Water Filters

Hopefully, you are now convinced you need to purify water outdoors, especially if its needed while out on the trails. So, let’s discuss the different types of portable water filters available.

Filters or Purifiers

It is important to differentiate between filters and purifiers. A portable water filter usually contains some sort of ultrafine membrane that physically catches microbes and debris and keeps you from consuming them. On the other hand, a purifier will kill all microbes within the water. A filter together with a purifier will offer the most effective purification, but this is not always an option for trail running water.

Water Purification Tablets

These tablets are usually iodine or chlorine and can add a nasty taste to your water. To be sure, they will kill most microbes, but it can take up to a few hours to work. You will also need a container for your water to sit in while it mixes with the tablet. Time to disinfect your water is not always a convenience afforded you on the trails.

Mixed Oxidant Purifier

Newer to the market, this purifier uses electrolysis to kill microbes. First, it requires you to add a bit of salt to its pen-shaped cylinder, dependent upon how much water you are purifying. Second, you put the pen into a water bottle or other container with the water in it. Third, pushing a button sends an electric current into the water which kills most microbes within minutes.

Ultraviolet Pens

These pen-shaped ultraviolet lights quickly kill microbes by busting through their cellular walls and reorganizing their DNA. Subsequently, this renders the microbe unable to reproduce and therefore, biologically dead. Generally, you will hold the pen in the water to be purified and stir it until the light goes out.

Single-Stage and Multi-Stage Filtration

As their names would suggest, single-stage filtration has one stage of filtration, and multi-stage has more than one stage of filtration. Multi-stage filtration has more capacity for catching microbes and usually contains a carbon filter that helps with taste and neutralizing industrial toxins. These systems can both be inserted into a bottle as a straw or can be an all-in-one type bottle and filter set up.


Best Portable Water Filters for Trail Running

Here is a list of some of the best water purifying options for trail runners. As a runner, and especially a distance runner, you need something lightweight and easy to use. Obviously, no one wants to let a little thing like dehydration ruin their P.R. Therefore, we’ve done the research so you can make an informed decision on what works best for you.

LifeStraw Go Water Filter Bottle

This 23-ounce, leak-proof bottle uses a 2-stage filtration system to deliver premium drinking water. The first stage is a hollow fiber membrane that captures microorganisms, and the second stage is a carbon capsule that purifies the tastes and filters impurities. Even though finding places to attach a bottle to yourself while running can prove difficult, this gives you the added option of taking water along with you, saving you from depending solely on trail sources.

Sale
LifeStraw Go Water Filter Bottle with 2-Stage Integrated Filter Straw for Hiking, Backpacking, and Travel, Blue
  • Reusable LifeStraw Go BPA-free water bottle filters water while drinking; great for travel, backpacking, camping, and emergency kits
  • Award-winning LifeStraw hollow fiber membrane water filter removes bacteria and protozoa from lakes, streams to ensure safe, clean drinking water
  • 2-stage activated carbon filter reduces odor, chlorine and leaves zero aftertaste
PROSCONS
Traps 99.9% of bacteria and protozoa from waterLarge bottle size
No chemicals or battery-usageStrong suction needed to retrieve water
Replacement filters available for lasting useChemical taste from bottle reported

LifeStraw Personal Water Filter

This compact water filter is a single-stage system using a hollow fiber membrane to trap microorganisms. Given that, it claims to trap up to 99.9% of parasites, bacteria, and microplastics in the water. It can also reduce water turbidity. This filter is unique in that it is simply a straw that you can use to drink directly from the water source. For that reason, it is super easy to carry along on trail runs.

LifeStraw Personal Water Filter for Hiking, Camping, Travel, and Emergency Preparedness
  • Removes bacteria & parasites: The microfiltration membrane removes 99.999999% of waterborne bacteria (including E. coli and salmonella), and 99.999% of waterborne parasites (including giardia and cryptosporidium).
  • Removes microplastics: Removes the smallest microplastics found in the environment (down to 1 micron), and reduces turbidity down to 0.2 microns.
  • Rigorous Testing: All claims are verified with laboratories using standard testing protocols set by the US EPA, NSF, ASTM for water purifiers.
PROSCONS
Traps 99.9% of bacteria, parasites, and microplasticsRequires strong suction
Compact straw systemCan break easily when dropped
Filters up to 4,000 liters of waterReported to clog easily

SteriPen Aqua UV Water Purifier

This SteriPen Aqua UV water sterilizer utilizes ultraviolet light submerged into a bottle of water to kill microorganisms. It takes just under 50 seconds to purify 1 liter of water. This cannot be used on turbid water as the light needs to pass through for proper purification. The SteriPen uses 4 AA batteries and weighs 1 pound. This device has the added convenience of a status indicator, but it does require the use of a bottle or other small container. For this reason, these are sometimes inconvenient on longer runs.

Sale
SteriPen Aqua UV Water Purifier
  • Eliminates over 99.9% of bacteria, viruses, and protozoa
  • Treats water in as little as 48 seconds
  • UV lamp provides up to 3, 000 liter water purification
PROSCONS
Quickly purifies waterHeavy to carry during runs
Easy-to-use operationCannot replace old UV lights
Filters up to 3,000 liters of waterDifficult to replace batteries

Sawyer Products Mini Water Filtration System

This system weighs just 2 ounces and fits in your hand making it super easy to tote along on trail runs. You can fill the included drinking pouch with water, connect it to a water bottle, or drink directly from your water source. With an available adapter, it can even be connected to your hydration pack if you’re so inclined to run with one. Because it has a lifetime filter rate of 100,000 gallons of water, it is one of the longest lasting filters out there.

Sawyer Products SP105 Mini Water Filtration System, Single, Black
  • Ideal for outdoor recreation, hiking, camping, scouting, domestic and international travel, and emergency preparedness
  • High-performance 0.1 Micron absolute inline filter fits in the palm of your hand and weighs just 2 ounces; 100% of MINI units individually tested three times to performance standards by Sawyer
  • Attaches to included drinking pouch, standard disposable water bottles, hydration packs, or use the straw to drink directly from your water source
PROSCONS
Super lightweight for runningSingle-stage filter only
Cleaning plunger includedO-ring defect sometimes causes leaks
Versatile, can be used many ways

Potable Aqua PURE Water Purifier

This nifty gadget is one of the newer mixed oxidant disinfectors. It uses saltwater and electric current to kill microbes. It is safe to use on turbid water because the water does not need to be clear for the current to go through it. In addition, you do need to have a container for the water which isn’t always easy to take on the trail. It will also take 35 minutes to completely disinfect your water, so if you cannot break from you run for that long, this might not be for you. Still, it is small, durable, and rechargeable by solar power, making it convenient while off grid.

Sale
Potable Aqua Pure Water Purifier, Portable Electrolytic Drinking Water Treatment Device
  • Potable Aqua PURE inactivates viruses,bacteria, Giardia and Cryptosporidium killing 99.9% of all organisms without the need to pre-filter or pump
  • Easily select the volume of water you want to treat from 1 to 20 liters - 60,000 liters of lifetime capacity
  • Potable Aqua Pure device activates a simple brine (salt and water) solution to produce a mixed oxidant disinfectant
PROSCONS
Compact and durableLeaves a chlorine taste to water
USB or Solar rechargeable lithium battery35 minutes to disinfect
Unconsumed water stays disinfectedIndicator lights hard to see in daylight

American Red Cross Ultralight Purifier

An ultraviolet water purifier, this 2.6 ounce gadget can sanitize 1 liter of water in 90 seconds. With it’s easy-to-use push button start and water-activated light sensors, you cannot go wrong. With a rechargeable battery via included USB cable, you can purify 20 liters per full charge. On the other hand, it is on the wider side meaning it isn’t very convenient to fit into water bottles. For that reason, glasses or wider mouthed containers would work better.

Sale
American Red Cross Ultralight Purifier RCP-MP-E American Red Cross Ultralight Purifier
  • SteriPEN ultra-violet lamp destroys over 99.9% of bacteria, viruses and protozoa
  • American red cross ultralight UV purifier quickly purifies 1.0L of water in only 90 secs
  • Easy to use, one-button operation provides 8, 000 treatments producing up to 8, 000 L of purified water
PROSCONS
LightweightWider, hard to use with bottles
USB rechargeable lithium batteryRequires container
Easy-to-UseDifficult to remove cover for USB port

Katadyn Vario Microfilter

This multi-stage filtration system features a pump which allows you to pump (rather than suck like with a straw) through its filters into a bottle. At 15 ounces and nearly 7 inches, this is similar in size to a small water bottle. The catch is that you need to bring along a bottle, too. Unless you are running with a pack, this system could prove too big for trail runs. Still, it is a great system to purify water outdoors with glass fiber filtration and a ceramic prefilter. Nonetheless, it can filter up to 2 quarts of water per minute.

PROSCONS
Multi-stage filtrationNot compact
Easy pump systemRequires bottle/container
Includes activated carbon for tasteWeak nozzle often breaks

Etekcity Water Filter Straw

This impressive straw filtration device uses a 3-stage system including a prefilter, carbon filter, and 0.1 micron hollow fiber UF membrane. The straw comes with a reusable drinking pouch, extension straw, and cleaning syringe. Moreover, you can drink straight from the water source. The versatility and compact nature of this device makes it handy to bring along to get fresh trail running water. 

Etekcity Water Filter Straw with 1500L 3-Stage Filtration, 0.01 Micron, Personal Mini Purifier Survival Gear for Hiking, Camping, Travel, Emergency
  • 3 STAGE ADVANCED FILTRATION: includes pre-filter, activated carbon filter and 0. 01 Microns hollow fiber UF membrane inline filter; removes 99. 99999% of waterborne bacteria, such as salmonella, cholera, and E. coli
  • SAFETY TESTED: This water purifier has been tested by the Tavy SD Institute and meets EPA Water Quality Standards. The pouch is FDA Compliant in accordance with 21 CFR 180. 22 to ensure maximum quality and safety
  • DEPENDABLE ACCESSORIES: The filter kit comes with a foldable water pouch for collecting water, a longer straw to attach to the filter, and a syringe for cleaning and lifetime extension
PROSCONS
Multi-stage filtration in a strawHard suction typically required
Cleaning accessories includedFragile drinking pouch
Carbon filter enhances water taste

Sawyer Products Micro Squeeze Water Filtration System

Similar to the Sawyer straw, this system can be attached to any common threaded water bottle or you can drink from the source (with an included extension straw.) It comes with a drinking pouch to be filled with water and the squeeze filtration is attached. Simply squeeze the water through the 0.1 micron hollow fiber filter and enjoy microbe-free clean water outdoors.

Sale
Sawyer Products SP2129 Micro Squeeze Water Filtration System
  • Reusable 0.1 micron absolute water filter produces clean water from freshwater lakes, rivers, streams, and residential faucets - no chemicals or batteries required
  • Attaches to included drinking pouch, standard disposable water bottles, hydration packs, or use the straw to drink directly from water source; 1-pack
  • Removes 99.99999% of all bacteria, such as salmonella, cholera, and E.coli; removes 99.9999% of all protozoa, such as giardia and cryptosporidium; also removes 100% of microplastics
PROSCONS
Squeeze filtration-suction not requiredPouch can break
Cleaning accessories includedFreezing can destroy filter
Lightweight and compactMultiple parts to carry along

To Filter or Not to Filter?

Filter, of course! Even if your immune system is top-notch, why risk it? Especially when you can easily get clean water outdoors with a portable water filter! Obviously, the advantages of carrying a straw filter, bottle filter, or pump system along for trail running water far outweigh the inconveniences of a bit of extra weight.

Undoubtedly, you are going to get thirsty on those long trail runs. Surprisingly, muddy puddles may start to look refreshing. Don’t drink it! I mean, unless endless diarrhea and projectile vomiting appeals to you. Let’s not even mention the time it will take for you to heal before getting back out on the trails. Invest in your own water filter and purify water outdoors by yourself! Your health depends on it!

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