Water filter for 3 people?

A Platypus 2L Gravity Works system interfacing with 2L Platy folding bottles via the Push Pull adapter. Freaking awesome.

Slow flow at first until the element is saturated and the bubbles are purged, but then it’s no effort clean water, and you can back flush straight from the bladder you are filling. Nice.

last 2 group trips I use Befree bottles and a  Bfree bag for camp.  These were trips in the Beartooth range with rivers and lakes as source.  Worked well .  I usually bring a vacume sealer bag to use as a water scoop.  Makes it easy to fill bags and bottles from any source.  Will be using same system in Glacier this august.

Sawyer with a gravity system works super easy.

Use the Sawyer in-line adapter at the end of one of these and hang it at camp.

CampX 3L Hydration Water Bladder with Magnetic Clip BPA and PVC Free-Lightweight Large Mouth Big Zip Opening-Reservoir Bag Works for Hiking, Mountain Biking,Camping-Taste Free-Leak Proof No Drip https://www.amazon.com/dp/B07SZ5BL7N/ref=cm_sw_r_cp_api_glt_fabc_780AFCY6Z0VM51Z1ZRR8?_encoding=UTF8&psc=1

For large water needs I use a platypus gravityworks 4L bag and a sawyer filter. If memory serves 42in is a good length of hose to use. It’s also nice  to have a valve or some other way to control flow.

Any of these filters set up for gravity-feed would work: Platypus, Sawyer, Hydroblu, etc. The thing that would make it particularly nice would be large capacity dirty and clean reservoirs so you don’t have to repeat over and over again. If you want to buy something as a kit that is all set up for you, a Platypus Gravityworks 4L system will make it easy. Otherwise you may need to fiddle a bit with tubing and adapters. It’s not super-light, but at 13oz, it’s not awful for three people.

Discontinued now, but an MSR Miox filter is IMHO the best for treating large quantities of water.   They can still be found if you search around a bit.

I don’t think that an MSR Miox is a filter, it creates chlorine. Why not just use Aquamira instead? If you’re absolutely sure you’ll have access to clear good-tasting water, that would also be a reasonable option.

What I suggested was primarily to save the OP some $ and space in their junk drawer. The bag I suggested costs $20, has a 40” tube, takes the Sawyer inline adapter without any other parts. My gravity setup doesn’t involve a clean bag, just my normal bottles. I just stick my clean bottles under the Sawyer filter and fill, gravity does the work. I just assumed that this would work for 3 people since most people seem to carry 1L smart water bottles, so they could just take turns filling their bottles at the water stop. Maybe that isn’t how the OP wants to manage time at the water stop, so my suggestion may not work.

If you go the Sawyer route I strongly urge you to use the large model, not the mini or micro. My hiking partner and I found the mini to be a massive PITA used as a gravity filter even with daily backflushes.

I’m tempted to suggest a BeFree filter with the largest bag option they offer. I’d still carry an extra, dry filter in case it suffers from the mystery clogs so many have experienced. When it works, it works GREAT.

@Michael B, that’s how I use mine. Haven’t had a trip where I needed to carry a separate clean bag, maybe one day. In camp I just fill up and leave hanging. Nice to have a big east supply in camp.

I like your thinking Michael B,cheap,easy and it works!

Thanks

I’m A big fan of the hydroblu 10L bag with their .2 micron  filter and carbon filter. Backflushable with std water bottles.

https://hydroblu.com/go-flow-water-gravity-bag/

Been using it a year and love it