Reverse osmosis pumps

Tony uk · 01-03-2008, 11:36 PM

Has anyone ever consisered useing Reverse osmosis pumps to purify water or to remove salt from it

I was looking at water filters and saw a reverse osmosis one and wondered can it be used to purify water for drinking ?

Ive heard that it is used in the medical industry to get clean water and also on life rafts at sea

Rick · 01-03-2008, 11:38 PM

What size are you talking about. Personal to carry with you, home, other?

Tony uk · 01-03-2008, 11:57 PM

A personal one, the kind included in life rafts

All i could find however was ones for your home and was wondering if any of you had used them in the field

Rick · 01-04-2008, 12:09 AM

I've never even heard of one for the field. I had a friend that had one in his home. About the size of a medium sized garbage can.

Whoa! I did a search on Katadyn filters and here's what I came up with. Pricey!

http://www.basegear.com/survivor06.html

What are you going to use it for?

Tony uk · 01-04-2008, 12:29 AM

If i could find one that was a good price then i was going to keep it in case i found a place where the water was salt water or needed to be filterd first

But now that i see the price i think that i will just forget the idea and stick to Haggis

Thanks Rick

Rick · 01-04-2008, 12:48 AM

If you are on the coast, can't you dig a hole some distance from the high tide mark and allow the water to fill the hole? The salinity should be reduced or removed by peculating through the dirt. Then use a regular backpacking filter or iodine or boil or whatever you normally use?

I found one a bit cheaper.

http://www.sea-pack.com/seapack.html

Gray Wolf · 01-04-2008, 01:18 AM

Quote:

Originally Posted by Rick

I found one a bit cheaper.

Actually it isn't cheaper if you're counting the output and how long it lasts and it's limited use.

benefits...

* Produces 0.5 liters of drink in 5 hours at 68 F
* No pumping or electricity required
* High salt rejection – 97%

specifications...

* Volume: 1.8 liters
* Filter life: 10 days
* Filter output:
0.5 liters (one pint) in 5 hours - .5 liters per syrup pack - comes with five syrup packs and more can be purchased
* User effort:
Seconds to fill, no work or electricity required for filtering

I also don't see anything about filtering anything but 97% of the salt

Rick · 01-04-2008, 01:23 AM

I just saw the price and threw the link on there.

Tony - You could probably distill the water or build a standing filter. There's one in the survival manual on the front page of the forum. I think I'd try the hole method and see if you couldn't get fresh water that way.

Tony uk · 01-04-2008, 01:25 AM

That was the way i was going to use, but i was seeing if there was something out there to do it in less time

Thanks Everyone

Airplane Guy · 01-04-2008, 07:42 PM

Osmosis pumps are packed in many life raft kits - even those rafts on board business jets and some airliners and military aircraft. The most common unit for rafts rated for 4 - 25 persons is the Katadyn (PUR) 06 Pump. This pump retails for approximately $750. My company sells them and tests/overhauls them. www.corpairparts.com

01-03-2008, 11:36 PM	#1
Tony uk Chinese Spanner Operator Join Date: Jun 2007 Location: Scotland Posts: 1,550 Blog Entries: 1	Reverse osmosis pumps Has anyone ever consisered useing Reverse osmosis pumps to purify water or to remove salt from it I was looking at water filters and saw a reverse osmosis one and wondered can it be used to purify water for drinking ? Ive heard that it is used in the medical industry to get clean water and also on life rafts at sea __________________ A wise person does at once, what a fool does at last. Both do the same thing; only at different times.

01-03-2008, 11:38 PM	#2
Rick Administrator Join Date: Nov 2007 Location: Central Indiana Posts: 28,000 Blog Entries: 2	What size are you talking about. Personal to carry with you, home, other? __________________ Safe Zone LLC "The Most Trusted Name in Outdoor Gear". Check out our free Family Disaster Plan The Mora Bushcraft Series is now available! Knot Making and Wild Edible Plants cards are in!

01-03-2008, 11:57 PM	#3
Tony uk Chinese Spanner Operator Join Date: Jun 2007 Location: Scotland Posts: 1,550 Blog Entries: 1	A personal one, the kind included in life rafts All i could find however was ones for your home and was wondering if any of you had used them in the field __________________ A wise person does at once, what a fool does at last. Both do the same thing; only at different times.

01-04-2008, 12:09 AM	#4
Rick Administrator Join Date: Nov 2007 Location: Central Indiana Posts: 28,000 Blog Entries: 2	I've never even heard of one for the field. I had a friend that had one in his home. About the size of a medium sized garbage can. Whoa! I did a search on Katadyn filters and here's what I came up with. Pricey! http://www.basegear.com/survivor06.html What are you going to use it for? __________________ Safe Zone LLC "The Most Trusted Name in Outdoor Gear". Check out our free Family Disaster Plan The Mora Bushcraft Series is now available! Knot Making and Wild Edible Plants cards are in!

01-04-2008, 12:29 AM	#5
Tony uk Chinese Spanner Operator Join Date: Jun 2007 Location: Scotland Posts: 1,550 Blog Entries: 1	If i could find one that was a good price then i was going to keep it in case i found a place where the water was salt water or needed to be filterd first But now that i see the price i think that i will just forget the idea and stick to Haggis Thanks Rick __________________ A wise person does at once, what a fool does at last. Both do the same thing; only at different times.

01-04-2008, 12:48 AM	#6
Rick Administrator Join Date: Nov 2007 Location: Central Indiana Posts: 28,000 Blog Entries: 2	If you are on the coast, can't you dig a hole some distance from the high tide mark and allow the water to fill the hole? The salinity should be reduced or removed by peculating through the dirt. Then use a regular backpacking filter or iodine or boil or whatever you normally use? I found one a bit cheaper. http://www.sea-pack.com/seapack.html __________________ Safe Zone LLC "The Most Trusted Name in Outdoor Gear". Check out our free Family Disaster Plan The Mora Bushcraft Series is now available! Knot Making and Wild Edible Plants cards are in!

01-04-2008, 01:23 AM	#8
Rick Administrator Join Date: Nov 2007 Location: Central Indiana Posts: 28,000 Blog Entries: 2	I just saw the price and threw the link on there. Tony - You could probably distill the water or build a standing filter. There's one in the survival manual on the front page of the forum. I think I'd try the hole method and see if you couldn't get fresh water that way. __________________ Safe Zone LLC "The Most Trusted Name in Outdoor Gear". Check out our free Family Disaster Plan The Mora Bushcraft Series is now available! Knot Making and Wild Edible Plants cards are in!

01-04-2008, 01:25 AM	#9
Tony uk Chinese Spanner Operator Join Date: Jun 2007 Location: Scotland Posts: 1,550 Blog Entries: 1	That was the way i was going to use, but i was seeing if there was something out there to do it in less time Thanks Everyone __________________ A wise person does at once, what a fool does at last. Both do the same thing; only at different times.

01-04-2008, 07:42 PM	#10
Airplane Guy Junior Member Join Date: Jan 2008 Location: Los Angeles, CA Posts: 2	Osmosis Pumps Osmosis pumps are packed in many life raft kits - even those rafts on board business jets and some airliners and military aircraft. The most common unit for rafts rated for 4 - 25 persons is the Katadyn (PUR) 06 Pump. This pump retails for approximately $750. My company sells them and tests/overhauls them. www.corpairparts.com