Sea Kayak Trips Bulletin Board

about the water filtration

Posted By: Mike and Rikki
Date: Thursday, 29 May 2003, at 1:28 p.m.

In Response To: OOPS! Here's the list. (Robert N Pruden)

Damn, that's a lot of stuff, but you'll be prepared. The one thing I see missing has to do with the Swettwater pump.

The Guardian has a synthetic filter element designed to be abraded, but these element types are generally designed to be eaily abraded and partly to reduce pump pressure (reduced force needed, reduced stress on the pump handle and reduced plenum chamber pressures). I suspect its a way to keep a income source guranteed to the company, too. In any case, one important thing is to do to extend the life of the filter and to avoid the hassle of continual cleaning is to reduce or prevent bacterail growth in the filter element. Believe it or not, the bacterial growth is the overwhelming cause of filter plugging. More pluggings, mean more cleanings, which means reduced filter life-you got the idea.

I would take along a 2 ounce plastic squeeze bottle with the flip-top drip nozzle filled with regular Clorox or Purex bleach (which is 3% solution). The plstic bottle is small, 1.5 cm by 3.5 cm, is less then a dolaar US and can be found at REI or any walmart. After pumping, open the filter and drip a couple drops in there, screw closed, and pump once to circulate the chlorine.

Also, for a Nalgene bottle of 32 ounce size, after filtering a bottle, 1-2 drops (and a 10 minute contact time before drinking) provides a chlorine residual suffiecient to inactivate any virus. All pumps are either filters, or varying levels of microfiltration. Water purification requires chemical treatment.

Just in case...do you have any anti-diarrheal tabs, too?

Messages In This Thread

Final Equipment/Food List
Robert N Pruden -- Monday, 26 May 2003, at 10:02 p.m.

OOPS! Here's the list.
Robert N Pruden -- Monday, 26 May 2003, at 10:03 p.m.

Re: OOPS! Here's the list.
Myrl Tanton -- Tuesday, 27 May 2003, at 11:05 a.m.

Daughter has fallen ill.
Robert N Pruden -- Tuesday, 27 May 2003, at 3:02 p.m.

Re: OOPS! Here's the list.
Ken Sutherland -- Tuesday, 27 May 2003, at 11:39 p.m.

She is on the mend, Ken *LINK*
Robert N Pruden -- Tuesday, 27 May 2003, at 11:53 p.m.

Re: She is on the mend, Ken
Ken Sutherland -- Wednesday, 28 May 2003, at 12:10 a.m.

Ken:GPS- Rob: stuff
Mike and Rikki -- Thursday, 29 May 2003, at 1:39 p.m.

about the water filtration
Mike and Rikki -- Thursday, 29 May 2003, at 1:28 p.m.

Re: about the water filtration
Robert N Pruden -- Thursday, 29 May 2003, at 9:35 p.m.

Re: about the water filtration
Mike and Rikki -- Friday, 30 May 2003, at 1:35 a.m.

Re: about the water filtration
Robert N Pruden -- Friday, 30 May 2003, at 1:43 a.m.

Re: about the water filtration
Mike and Rikki -- Friday, 30 May 2003, at 2:04 a.m.

Re: about the water filtration
Robert N Pruden -- Friday, 6 June 2003, at 12:05 p.m.

Re: about the water filtration
Mike and Rikki -- Friday, 6 June 2003, at 3:02 p.m.

Re: about the water filtration
Robert N Pruden -- Saturday, 7 June 2003, at 9:01 p.m.

Re: about many things
Mike and Rikki -- Sunday, 8 June 2003, at 1:41 p.m.

Re: about many things
Ken Sutherland -- Sunday, 8 June 2003, at 2:13 p.m.

Re: about the water filtration
Ken Sutherland -- Sunday, 8 June 2003, at 11:34 a.m.

Re: about the water filtration
Mike and Rikki -- Sunday, 8 June 2003, at 3:17 p.m.

Re: about the water filtration
Ken Sutherland -- Sunday, 8 June 2003, at 4:15 p.m.

Re: about the water filtration
Mike and Rikki -- Sunday, 8 June 2003, at 8:54 p.m.

Katadyn
Robert N Pruden -- Monday, 9 June 2003, at 11:01 a.m.

Re: Katadyn
Mike and Rikki -- Monday, 9 June 2003, at 4:50 p.m.

Re: Katadyn
Robert N Pruden -- Tuesday, 10 June 2003, at 11:21 a.m.

Thanks for the comparison, Mike *NM*
Robert N Pruden -- Monday, 9 June 2003, at 10:58 a.m.

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