Millbank Bag: Difference between revisions
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*Essentially a bag made of Tightly Woven [[Canvas]] (Typically something like [[Cotton]] that is cellulosic and porous) that filters MOST particles out of water | *Essentially a bag made of Tightly Woven [[Canvas]] (Typically something like [[Cotton]] that is cellulosic and porous) that filters MOST particles out of water | ||
**Probably not good enough compared to [[Microfiltration]] / [[Nanofiltration]] via [[Hollow Fiber Membrane]] based solutions like [[Lifestraw]] / [[Portable Water Filtration Pumps]] (such as those made by MSR etc) | **Probably not good enough compared to [[Microfiltration]] / [[Nanofiltration]] via [[Hollow Fiber Membrane]] based solutions like [[Lifestraw]] / [[Portable Water Filtration Pumps]] (such as those made by MSR etc) | ||
*If combined with Boiling (Essentially 100c Based [[Pasteurization]] , Modified Procedures like [[Tyndallization]] , and [[Autoclaving]] can be more effective against more durable pathogens/products such as spores), it can make | *If combined with Boiling (Essentially 100c Based [[Pasteurization]] , Modified Procedures like [[Tyndallization]] , and [[Autoclaving]] can be more effective against more durable pathogens/products such as spores), it can make [[Potable Water]] from from a comparatively simple process | ||
**Main thing would be SOMEWHAT turbid and (potentially) pathogenic water->Less/Not Turbid Water that still may be pathogenic (via millbank bag)->(Mostly) Sterilized Potable Water via Boiling and/or Chemical Treatment and/or Further Filtration and/or something like a [[Steripen]] etc | |||
=COTS Options= | |||
==Forest Fundamentals== | |||
*[https://a.co/d/03PHcnSg An Amazon Listing for the Product] ( ‘’’~19 USD Each as of This Edit’’’ ) | |||
**Has Printed Directions + a Max Fill Line on the Bag | |||
**Comes with a [[Stuff Sack]] | |||
**Mentions: | |||
***” The Second Edition Millbank Bag: Now featuring taped seams and double overlock stitching, we've significantly enhanced its durability to reduce leakage. The waterproof carrying bags have been upgraded with reinforced stitching for added strength.” | |||
***”thicker 12oz [[Unbleached Cotton Canvas]] ” | |||
***[[550 Cord]] + A [[Carabiner]] + [[Grommet]] for Hanging | |||
****Mentions it being some sort of sUrViVaL cOrD that can be repurposed as a [[Fire Wick (Firestarter) ]] , but if you are at the point you are burning your gear to get by…you have some issues, so this seems largely a gimmick | |||
****Uncertain if the grommet is Stainless, but not hard to swap out if need be | |||
= | ==Helicon Tex== | ||
* | *[https://a.co/d/09PnHaSG An Amazon Listing for the Product] ( ‘’’~16 USD as of this Edit’’’ ) | ||
*Less information, and potentially a plastic grommet, but otherwise largely the same thing | |||
**Instructions are printed on the stuff sack, not the millbank bag itself for better or for worse | |||
=Usual Flow Rate= | =Usual Flow Rate= | ||
Latest revision as of 20:23, 28 March 2026
Basics
- An OSLT / Appropriate Materials type approach to Water Filtration
- Essentially a bag made of Tightly Woven Canvas (Typically something like Cotton that is cellulosic and porous) that filters MOST particles out of water
- Probably not good enough compared to Microfiltration / Nanofiltration via Hollow Fiber Membrane based solutions like Lifestraw / Portable Water Filtration Pumps (such as those made by MSR etc)
- If combined with Boiling (Essentially 100c Based Pasteurization , Modified Procedures like Tyndallization , and Autoclaving can be more effective against more durable pathogens/products such as spores), it can make Potable Water from from a comparatively simple process
- Main thing would be SOMEWHAT turbid and (potentially) pathogenic water->Less/Not Turbid Water that still may be pathogenic (via millbank bag)->(Mostly) Sterilized Potable Water via Boiling and/or Chemical Treatment and/or Further Filtration and/or something like a Steripen etc
COTS Options
Forest Fundamentals
- An Amazon Listing for the Product ( ‘’’~19 USD Each as of This Edit’’’ )
- Has Printed Directions + a Max Fill Line on the Bag
- Comes with a Stuff Sack
- Mentions:
- ” The Second Edition Millbank Bag: Now featuring taped seams and double overlock stitching, we've significantly enhanced its durability to reduce leakage. The waterproof carrying bags have been upgraded with reinforced stitching for added strength.”
- ”thicker 12oz Unbleached Cotton Canvas ”
- 550 Cord + A Carabiner + Grommet for Hanging
- Mentions it being some sort of sUrViVaL cOrD that can be repurposed as a Fire Wick (Firestarter) , but if you are at the point you are burning your gear to get by…you have some issues, so this seems largely a gimmick
- Uncertain if the grommet is Stainless, but not hard to swap out if need be
Helicon Tex
- An Amazon Listing for the Product ( ‘’’~16 USD as of this Edit’’’ )
- Less information, and potentially a plastic grommet, but otherwise largely the same thing
- Instructions are printed on the stuff sack, not the millbank bag itself for better or for worse
Usual Flow Rate
- In terms of planning, per each bag how much water per minute/hour etc?