Rain and surface water filter - Must see video.

[fje-iptelenet]

List,

Apologies if this filter was discussed before.
http://www.ted.com/talks/lang/eng/michael_pritchard_invents_a_water_filter.html

Regards,
Franz

[dhaslam]

Excellent

[billi]

nice one

i reckon the idea is based on "ultra filtration" small ceramic tubes were the water is pushed through ,  something like this http://www.dwc-water.com/technologies/filtration-systems/index.html

My whole house water flows trough a filter like this since 2 years now

Billi

[pontiff]

You can buy them on Amazon for £115 

[odbob]

Sounds like reverse osmosis, in a hand held form, good idea if it works

[billi]

like said its more  likely to be a ultrafiltration membrane , not a reverse osmosis ....

the benefit of the ultrafiltration membrane is you need lesser energy to press the "dirty "water trough the filter  , as far as i know reverse osmosis is dumping parts of the water ( might be wrong ) and needs higher pressure (so hard to use it as a inline filter )

http://www.lifesaversystems.com/techinfo.html

again  our back washable filter cartridge  is installed over 2 years now ( with a pre- filter) to fill ca 1 shower , 1 dishwasher, our cooking water , and half of a washing-machine a day  extracting water of a clean pond

Billi

[shiela_robins]

Wow does that product really work? It's amazing! But drinking that water after seeing where it came from was so dirty is gonna be hard.  And £115 isn't exactly cheap.

[myozone]

http://www.aquasafestraw.com 

[JimS]

Yes it is ultra filtration, RO's require high pressure to push the water through the membrain, 6000l is not a lot in terms of the ultra-filter itself but good for human consumption and saving lives. What i mean is if the ultra filtration unit was on say a dialysis unit it would be doing 10000l a month which is why it requires pre treatment i.e. softners, RO's and UV to help the ultra filtration filter last a lot longer.
after 6000l the hand held will be clogged and require changing of the filter

[Baz]

Snakeoil salesman of the worst kind exploiting 3rd world problems to sell his proiduct.
Pressure assisted filter bottles have been around for years for campers at about 1/3 the price.
For disaster relief high volume motorised units are hundreds of times more ecenomic and efficient.
For third world fixed installations all you need is a few bags of silver sand like our own water companies use.