Membrane Solutions 6L Gravity Water Filter Pro - model M01011 

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Excellent review Mark! There are a few things I really like about this system, one being it filters heavy metals. The other is that it comes apart to dry, nice feature. It is also very reasonably priced. I am a Sawyer fan because the mini will filter up 100,000 liters depending on water quality so I would be hard pressed to change at this point but for places where heavy metals are an issue, this definitely would be great. The mod you did was an improvement for sure and I would feel the same about the filter being on the bottom of the tube. Thanks for sharing. :) :)

Hi Mark, This was another outstanding informative video, thank you for sharing. This looks like a excellent filter system. I like the modifications you did also 👍🏻 I hope you had a wonderful Father’s Day, and I think it is really great to hear that you are giving Guided Tours 👍🏻 I can only hope that the people you give them too appreciate all your knowledge and experience ! Thanks again and Take Care 👍🏻🇺🇸

I think the filter at the bottom of the hose helps with the flow rate due to more separation from the bag to filter.....enough to make much of a difference? It's noticeable, but probably not too important compared to the inconvenience of tipping over your bottle. I buy activated charcoal from the pet store and use it to make a pre-filter for my Squeeze. It can make the water taste better.......Great review as always, thank you!

Another great review, Mark. I like the large size of it. Go big or go home! Thanks, Mark.

Simple to use and it works, perfect👍

I think the mod you made was better than the original setup. Now, if only someone would come up with a way to filter black flies……😉😘🤪🤪🤪🤪

Good Price For This Important Item, Great Share Thanks Mark ! ATB T God Bless

When you get to the core filter component, it looks exactly like a BeFree and the same sort of technology that a Sawyer system uses if you crack one open. My issue with this particular filter is that there are all these loose parts and caps to keep track of, that can easily be lost. None of these are critical to filtering water, but it seems overly complicated. I’ve also never understood why people would want to carry the “straw” mode filter, rather than just a water bottle that can screw onto a filter so they can drink on site, but also carry water with them. You can use a Sawyer just fine as a gravity filter - just attach it to a bag with dirty water in it and hang it like any other gravity filter. The benefit of the Sawyer over all these other systems is that it comes with that syringe that allows for back flushing in the field. Using a water bottle for backflushing lacks the power to penetrate clogged filter membranes, and the water just flows into the paths of least resistance, rather than fixing clogs (my experience, at least). All of these filters are fine with filtering snow melt, spring water, and clear lake and stream water sources. But filter out of a wetland, and they clog fast. The carbon pre-filter shown in this review should go a long way in helping with performance issues, and that can be cleaned in the field to a degree, but once the filter membranes themselves get micro-particles in them it’s game over without a back flush system. It would be interesting to see how well a water bottle as a back flush system would work for this filter when compromised. Shaking or swishing the filter around in clean water just doesn’t work, in my experience. Overall, I would want to see a review of a filter where flow rate is compromised by less than clear water, and then it is serviced with flow rate restored in the field. If that can’t be demonstrated, I have to carry a backup filter, or a proven filter from the start.

Their website gives different ratings for their filters all with the same tech. Some places indicate 1500 liters for the individual filter that comes with the bag. Other places say the 5000 liters. Personally, I would go with smaller amount...especially with the affordability of filters and replacement parts.

Mark , good review and demonstration , thanks for sharing , God bless !

Excellent video.

Excellent piece of kit Mark. I like that you can use it for many applications and what it filters out and flow rate. I really like that you can take it apart to let it dry out as well. Right now I am using the Woods water straw from CTC and have a Seychelle water bottle extreme filter as well. was going to buy the Befree bottle but am now quite interested in this product. Cheers my friend!

Great videos!

I just ordered one of these.

Thanks Mark, great video.

Good review, and that looks like an excellent bit of kit, which is halfway between a water filter and a purifier, with the carbon filter. I also like that the carbon filter is replaceable, as I think they have a shorter life than the membrane filter. Where I live viruses are not an issue, but heave metals are. This would be the perfect solution for me. I have one question. The carbon filter should take out some or most of the funky taste from dirty water. My question is, from your experience, does it remove bad tastes?

Looks like a good system

Anyone that backflushes at home needs to evaluate their home water system first. If it’s not from a municipal system, or is otherwise high in minerals, then back flushing can do more harm than good - you want to make sure to back flush using distilled water in this case, to avoid problems.

nice FILTER

Hello from British Columbia Canada 🇨🇦👋👍♥️🌲🧘‍♀️🌲🚵‍♀️🌲🎨🖌☕😎🐌😉 Noticed that Costco had a 4 pack of lifestraws, 60$

What perfect timing Mark. In the next couple weeks, I was planning on picking up an MSR gravity filter, or one like it, but this seems to be a little cheaper, and without the carbon fibres, this seems like it would be much less likely to break (they warn on some of those that dropping it can break the cartridge) One question though is did you get a chance to really run this thing? Do you think that it can handle water that’s a bit dirty with out clogging? Finally convinced the family to go into the real woods (no showers, toilets etc…) so I’ll need to keep us all well watered.

I need a little help. I watched the video to see how to put my gravity filter together. Thank you so much for the easy instructions. But my hose to bag connector is not angled. It is a blue straight connector. Is there some place I can purchase the angled grey connector that is on your set up. Thank you! Doretta

Where did you get that hat? I need one of those. Very nice!

Interesting option. I watched a video the other day about something called a millbank bag, have you ever used one? If you have are they worth carrying in our part of the country?

For post hike / season cleaning, do you also back flush with a solution that has a little bleach mixed into it, for disinfectant purposes?

How often must the activated carbon filter be changed? If the activated carbon filter is saturated with pollutants and you then filter water containing humic substances, for example in autumn, all the collected pollutants in the activated carbon filter are released at once and you poison yourself.