Introduction
The LifeStraw Peak Series Solo is an ultralight and compact personal water filter designed to provide safe drinking water in various outdoor and emergency situations. This manual provides essential information on how to set up, operate, maintain, and troubleshoot your filter to ensure optimal performance and longevity.
Key Features:
- Advanced Filtration: Protects against 99.999999% of bacteria (including E.coli and Salmonella), 99.999% of parasites (including Giardia and Cryptosporidium), and 99.999% of microplastics.
- Ultralight & Durable: Weighs only 48 grams; the membrane microfilter lasts up to 2,000 liters.
- Highly Versatile: Features a standard 28mm PCO thread for direct attachment to most common water bottles.
- Fast Flow Rate: Delivers 3 liters per minute, allowing you to fill a 1-liter bottle in approximately 20 seconds. Enhanced performance reduces clogging from sand and sediment.
Components
Your LifeStraw Peak Series Solo package includes the following items:
- LifeStraw Peak Series Solo Water Filter
- Top and Bottom Caps
- Backwash Syringe

Image: The LifeStraw Peak Series Solo personal water filter with its caps.
Setup and First Use
Before using your LifeStraw Peak Series Solo filter for the first time, it is important to prime it to ensure proper function.
- Remove Caps: Unscrew the top and bottom caps from the filter.
- Submerge Filter: Submerge the bottom end of the filter (the end without the mouthpiece) into a clean water source for at least 20 seconds to allow water to saturate the membrane.
- Drink or Attach: Once saturated, you can begin drinking directly from the filter or attach it to a compatible water bottle.
- Initial Sips: The first few sips may contain air bubbles. Continue to draw water until a steady flow is achieved.
Video: This video demonstrates the components of the LifeStraw Peak Series Solo filter, including the filter unit and the backwash syringe, and shows how to handle them.
Operating Instructions
The LifeStraw Peak Series Solo offers versatile usage options for accessing safe drinking water.
Direct Drinking
- Remove the bottom cap from the filter.
- Submerge the bottom end of the filter directly into your water source (e.g., stream, lake, puddle).
- Place your mouth on the mouthpiece and sip water through the filter.

Image: A person using the LifeStraw Peak Series Solo filter to collect water from a natural stream in a rocky outdoor environment.
Bottle Attachment
The filter's standard 28mm PCO thread allows it to be screwed onto most common water bottles.
- Fill a compatible water bottle with untreated water.
- Screw the LifeStraw Peak Series Solo filter onto the neck of the bottle.
- Flip open the mouthpiece and sip directly from the filter attached to the bottle, or squeeze the bottle to force water through the filter.

Image: A person drinking clean water from a bottle with the LifeStraw Peak Series Solo filter attached, in an outdoor setting.
Maintenance
Regular cleaning of your LifeStraw Peak Series Solo filter is crucial for maintaining optimal flow rate and extending its lifespan.
Backwashing Your Filter
Backwashing helps to clear out trapped particles from the filter membrane.
- Fill the backwash syringe with clean water.
- Remove the mouthpiece cap from the filter.
- Attach the syringe to the mouthpiece end of the filter.
- Firmly push the plunger of the syringe to force water back through the filter. You will see dirty water exiting the other end.
- Repeat this process several times until the water coming out is clear.
- After backwashing, shake off excess water and allow the filter to air dry.
Storage
For long-term storage, ensure your filter is thoroughly cleaned and dried to prevent mold or bacterial growth.
- Perform a thorough backwash with clean water.
- Shake off any excess water from the filter.
- Allow the filter to air dry completely for several days in a clean, dry environment. Do not store wet.
- Once dry, replace the caps and store the filter in a cool, dry place away from direct sunlight.
Troubleshooting
If you encounter issues with your LifeStraw Peak Series Solo filter, try the following solutions:
- Slow Flow Rate:
- The filter may be clogged with sediment. Perform a backwash using the included syringe.
- Ensure the filter is fully primed by submerging it in water for at least 20 seconds before use.
- No Water Flow:
- The filter may be severely clogged. Attempt multiple backwashes.
- Check if the filter is frozen. If frozen, allow it to thaw completely at room temperature. Do not use if you suspect it has been frozen and then thawed, as this can damage the membrane.
- Ensure the water source is not too shallow or muddy, which can quickly clog the filter.
- Unpleasant Taste:
- The LifeStraw Peak Series Solo removes bacteria, parasites, and microplastics, but does not remove chemicals or heavy metals, which can affect taste.
- Ensure the water source is free from chemical contamination.
Specifications
| Feature | Detail |
|---|---|
| Brand | LifeStraw |
| Model Name | LifeStraw Peak Series Solo |
| Model Number | LSPSSOLBWW |
| Special Feature | Ultralight and Durable |
| Product Dimensions (LxWxH) | 33 x 33 x 129 mm |
| Material | Plastic |
| Filter Capacity | 2000 Liters |
| Purification Method | Hollow Fiber Membrane Filtration |
| Power Source | Manual Operation |
| Maximum Flow Rate | 3 Liters per minute |
| Max Supported Water TDS (PPM) | 1000 |
| Item Weight | 48 grams |
| Country of Origin | Republic of Korea |
Warranty and Support
Product Warranty
The LifeStraw Peak Series Solo is covered by a warranty in accordance with applicable legal provisions. Please retain your proof of purchase for any warranty claims.
Customer Support
For further assistance, technical support, or to inquire about warranty services, please visit the official LifeStraw website or contact their customer service department through the contact information provided on their packaging or website.