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Matt DeWitt
(tritan) - F

Locale: Midwest
gravity filter on 10/12/2010 18:44:06 MDT Print View

I did a hammock hang for the first time with the hammock form.net guys and one of them had a katdin base camp gravity filter it was great. I wan't to find something like it but a bit smaller would be nice for solo or me and the wife. I found ULA made a omega pro but no longer sell it . Is there something like it you guys recommend? I saw a guy made his own but no idea how he did it. If its that easy I would try it but would rather buy one.

http://www.youtube.com/watch?v=JzRlfV44Z-I if you are interested in the trip.

Edited by tritan on 10/12/2010 18:45:17 MDT.

Heath Pitts
(heathpitts)

Locale: Nashville
Homemade on 10/12/2010 19:05:40 MDT Print View

This really is an easy MYOG project. I made one using a JacksRBetter pack cover and a Sawyer inline filter. There was a parts list that i used posted on another site. This can also be done with a silnylon stuff sack. I originally used a katadyn hiker filter element but it clogged too quickly. I added a siltstopper inline to stop that from happening with the Sawyer.

I think that I posted that on here as well. I'll take a look for a link

http://www.backpackinglight.com/cgi-bin/backpackinglight/forums/thread_display.html?forum_thread_id=31461&skip_to_post=266377#266377

Here is the link for the filter before I added the Sawyer filter and siltstopper. There is also a link to the parts list.

Edited by heathpitts on 10/12/2010 19:10:35 MDT.

Greg Mihalik
(greg23) - M

Locale: Colorado
Re: Two Gravity Filter Threads on 10/12/2010 19:10:22 MDT Print View

Here is one thread.

And Here is another.

Greg Mihalik
(greg23) - M

Locale: Colorado
Re: Re: Two Gravity Filter Threads on 10/12/2010 19:59:35 MDT Print View

Heath,
That link requires a login.
I tried to search on heathpitts and "gravity filter" but got no hits.

Can you provide a date and a few key words?

I'm particularly interested in you silt filter. Brief description?

Thanks.

Heath Pitts
(heathpitts)

Locale: Nashville
Post title on 10/12/2010 20:10:24 MDT Print View

The post was titled "Gravity filter with JRB pack cover". I'm not sure why that link requires a login. Date was 4/14/2010

The siltstopper is an MSR product. It's made for use in really sandy water. It has a replaceable filter material inside and I also added some carbon for taste inside the siltstopper. The Sawyer doesn't include carbon. So far this has worked well with the same or better filter rate of the katadyn hiker element

Edited by heathpitts on 10/12/2010 20:11:15 MDT.

Matt DeWitt
(tritan) - F

Locale: Midwest
filter on 10/12/2010 20:18:22 MDT Print View

hmmmm. interesting. I don't see alot directions on how to do it. The filter I seen was a homemade bag of some kind with a filter in the center of it and a clamp on a tube. It was great we could go to the tap when we needed it and filter our bottles. I don't see this any where. I wonder if a sawyer filter inline would be enough?

Heath Pitts
(heathpitts)

Locale: Nashville
Directions on 10/12/2010 20:29:22 MDT Print View

Looks like I can no longer access that post on hammock forums. Arrowhead Equipment used to sell an item called aqua simple I think but I don't see it on their site anymore. Here is one similar using a Seychelles filter on gofastandlight

http://www.gofastandlight.com/Gravity-Power-Water-Filter-and-Purification-Basecamp-Bag/productinfo/W-S-GRAVBAG/

I ordered all the pieces from U.S. Plastics. I'll try to find my order and post the parts list here

Heath Pitts
(heathpitts)

Locale: Nashville
Parts list on 10/12/2010 20:32:05 MDT Print View

Item # Qty Qty U/M Item Price Disc % Disc Price Extended Price Item Description
62169 2 Each $0.90   $0.90 $1.80 Female Adapter Nylon Fitting 1/4" x 1/4"
62174 2 Each $0.65   $0.65 $1.30 Male Adapter Nylon Fitting 1/4" x 1/4"
59200 2 Each $0.51   $0.51 $1.02 Tubing Clamp accepts tubing up to 1/2 inch O.D. Acetal.


I also used some rubber bumper washers that I purchased at Home Depot

Matt DeWitt
(tritan) - F

Locale: Midwest
wow on 10/12/2010 21:21:00 MDT Print View

I like the gofastandlight setup. That is what I am looking for . 27 bucks is better then the Kat base filter for 70.00.

Greg Mihalik
(greg23) - M

Locale: Colorado
Re: wow - and Thanks! on 10/12/2010 21:36:29 MDT Print View

Heath,
Thanks for the follow up info.
I'm on it.
Great setup.

Heath Pitts
(heathpitts)

Locale: Nashville
Filter setup on 10/12/2010 21:46:46 MDT Print View

Any time! If you are going to build your own and you want me to post more pics of the current setup then I will be glad to do so.

Greg Mihalik
(greg23) - M

Locale: Colorado
Re: Filter setup on 10/12/2010 22:01:21 MDT Print View

I really like the idea of adding activated charcoal to the pre-filter!

Clean, clear, good tasting water every time.

Heath Pitts
(heathpitts)

Locale: Nashville
Charcoal on 10/12/2010 22:08:41 MDT Print View

It seems to work well. I did have to add a small piece of screen over the top of the carbon. I just wanted to make sure that no smaller pieces would become stuck in the tube.

Pieter Kaufman
(Pieter) - F
Frontier Pro on 10/13/2010 08:21:29 MDT Print View

I have my eye on the Frontier Pro, but on the shop page, the gravity rig tutorial video incorporates Micropur tabs as part of the system. The product text says nothing about requiring tablets as a fail-safe, and inasmuch as I've used other people's filters, no one's ever doubled-up the filter with tabs. Is there something different about the Frontier Pro that makes doubling up with tabs prudent, or is the tutorial guy just overly cautious?

Heath Pitts
(heathpitts)

Locale: Nashville
Pore size on 10/13/2010 08:23:36 MDT Print View

I believe that the filter pore size on the frontier pro is larger than the Sawyer or Katadyn. That would be the reason for the tablets first

Gary Dunckel
(Zia-Grill-Guy) - MLife

Locale: Boulder
Frontier Pro on 10/13/2010 08:51:02 MDT Print View

Yes, Pieter, the pore size on the Frontier Pro is 2.0 microns. This will filter out the protozoa spores, but not bacteria or certainly viruses. The Sawyer filter has a pore size of 0.1 micron, which will take care of everything but viruses. So, you need to add pills or Aqua Mira when using the Frontier Pro. The big advantage of the FP over just using pills is that you don't have to wait up to 4 hours before drinking (bacteria and viruses are neutralized in maybe 20 minutes; the filter takes care of the protozoa). The other advantage of the FP is its charcoal element. This removes the chlorine taste of the pills or Aqua Mira. The Sawyer doesn't have a charcoal element, so your pill-treated water (if you're using them to kill viruses) will still have the chlorine taste.

Ike Mouser
(isaac.mouser) - F
charcoal on 10/13/2010 09:44:58 MDT Print View

There are various ways to add a charcoal element. You can make your own and run it theough a small dropper bottle attahced to your hose somehow, buy charcoal at fish supply store. Or you can use these filter things that farmers use, i've seen them before on a setup, they fit right in your hose for the gravity setup, are pretty light too. Hopefuully someone will remember. I think a sawyer + a charcoal is the best way to go without a doubt, but you have to myog it, thats what im going to eventually do. Cuben water collection bag + hose + charcaol + sawyer.

Heath Pitts
(heathpitts)

Locale: Nashville
Siltstopper on 10/13/2010 09:46:26 MDT Print View

I added the charcoal to the MSR siltstopper that I have in-line. It seems to work well so far.

Ike Mouser
(isaac.mouser) - F
this might be it on 10/13/2010 09:59:42 MDT Print View

http://www.rungreen.com/John-Deere-Lawn-Tractor-Fuel-Filter-Many-Lawn-and-Gator-Models_p_2312.html

http://www.amazon.com/Poulan-Tractor-Filter-Universal-PP32013/dp/B000BPCVQ0

Heath Pitts
(heathpitts)

Locale: Nashville
Good idea on 10/13/2010 11:29:21 MDT Print View

Those look like they would work well. Any ideas on the element that is in the filter already? Could be a low cost replacement to the siltstopper if the pore size is small enough