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Discussion: How do we build a Water Station

Re: Discussion: How do we build a Water Station

AnneZ said:
Ok lets work with 12 people. It can always be rounded up if necessary.

Which technologies will provide enough water for those twelve people?
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A quick search of eBay, as I suggested before, yielded at random, this RO system.

http://cgi.ebay.com/WaterGeneral-RO...0QQihZ002QQcategoryZ20756QQrdZ1QQcmdZViewItem

They claim it will do ~100 gallons per day and the cost as ~$125.

Another alternative, that I personally have, is discussed in another FluTracker thread cited in one of the first posts in this thread.

It is the ceramic "candle" filter capable of making 1000's of gallons of water. Simple gravity siphioning action draws the water through it into a container. It is as fast as need for the stated goal.

Be aware however, it will not remove chemical impurities that the RO filter will.

It will not remove all biological threats, so chlorine, Miox type, or UVC treatment will also be needed.

It boils down to this:

People will have to take the necessary steps to provide redundant sources of potable water BEFORE it is needed or they may become very thirsty and die.

Anything else is irresponsible and/or wishful thinking.
 
Re: Discussion: How do we build a Water Station

EXPY37 we are cross posting.

Next question.

How do we get the water to and from the water filter.
 
Re: Discussion: How do we build a Water Station

EXPY37 said:
Let's not change the goal in the middle of the mission.

First of all the OT did not postulate providing water for 100 people. That is a small village, not "your neighbors". An entirely different problem completely.

So, responding to the OT, let us assume the neighbors are 4 families with an average of 3/family equaling 12 people.

12 people will need approx 2 gal/day each for drinking and cooking if good discipline and management practices are used.

That's 24 gallons/day.

Easily provided with several inexpensive technologies.
Click to expand...

EXPY37 said:
That is a simple engineering issue, solvable by even a smart teenager with common sense.
Click to expand...

The neighbour could deliver the water in a bucket left at the door way.

You do the work of filtering.

Place the cleaned water in to a clean container.

Leave on door step.
 
Re: Discussion: How do we build a Water Station

Yes to the above.

Anne, if you are trying to provide as important commodity as water to a group of neighbors, I would think it would be worth investing a lot of time and study on the subject not to mention the equipment to do so. Their lives may depend on you.

A funnel device could be connected to the outside of your house for the neighbor to dump the raw water into, and a spigot provided to dispense the water to them, without you having to risk coming outside your house and being attacked or invaded.

From what I gather here, most people will have no idea how to make potable water, so if you have that ability, you probably can get some degree of protection from others who might otherwise not be so friendly.

I see you are in NZ, what kind of water do you have in your AO to work with?
 
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Re: Discussion: How do we build a Water Station

It seems to me the MIOX is the best, most efficient, cheapest way to purify water.

EXPY, I was warning against the homemade models. the real MIOX has a titanium core. The homemade ones just plain don't work.

It seems to me that few MIOX's (real, not ebay with a stripped core) and cheap coffee filters for pre-filtering would actually be the best way to furnish water to a group.
 
Re: Discussion: How do we build a Water Station

Lynda said:
It seems to me the MIOX is the best, most efficient, cheapest way to purify water.

EXPY, I was warning against the homemade models. the real MIOX has a titanium core. The homemade ones just plain don't work.

It seems to me that few MIOX's (real, not ebay with a stripped core) and cheap coffee filters for pre-filtering would actually be the best way to furnish water to a group.
Click to expand...
I would partly agree unless there were chemicals in the water like PCB's etc.

My preference [after RO] would be an inexpensive ceramic candle and carbon block filter series siphon with Miox or chlorine dioxide treatment. The carbon would help to remove non-biological impurities.

Your mention of Miox 'copies' on eBay is something I hadn't heard of before, but I live a sheltered life.

I guess you know where I'm heading next.:magnify:
 
Re: Discussion: How do we build a Water Station

Back from an eBay search and couldn't find anything ref a DIY Miox.

However here is a good link to a DIY one.

http://www.equipped.org/ubbthreads/...er=72499&page=22&view=expanded&sb=7&o=&fpart=

I have a Miox and have carefully studied it and also read the Miox lady's comment that the electrodes are some proprietary design and have heard titanium mentioned.

I wrote a post in CE about a year ago on making your own expedient Miox with platinum electrodes and small battery [~6VDC]. There is no reason it couldn't be done.
 
Re: Discussion: How do we build a Water Station

Just found this:

According to the MSR website the MIOX unit uses platinum electrodes for both the anode and cathode. These shouldn't release any ions under these conditions whereas the carbon/graphite *might* drop something off the anode. I'm not worried about toxicity but I am concerned about the carbon anode creating different oxidative products...

***************
But on the Miox forum:

In response to your other question, the electrodes are titanium with proprietary catalytic coatings.
Thanks! Katie


*************

FWIW, titanium is readily available, just cut 2 pieces off your titanium spork or tent stakes, stick them in a capful of salt water, electrolyze it, and pour it into your water bottle. Simple.

The aforementioned notwithstanding, I'd prefer platinum or 24k gold. It is readily available as wire on eBay. AAMOF, I have some gold wire left over from an earlier experiment.

And some Type R thermocouple wire made up of a positive wire of 87% platinum and 13% Rhodium, and a negative wire of 100% platinum. Good to go.

And here's the patent:

http://patft.uspto.gov/netacgi/nph-...G&l=50&co1=AND&d=PTXT&s1=MIOX&OS=MIOX&RS=MIOX

Looks like the anode is ruthenium oxide coated titanium, and the cathode is titanium.

"The preferred anode materials comprise a titanium substrate with an oxide coating of Group VIII metals such as platinum, iridium, rhodium, or ruthenium, although other typical anode materials may be utilized in accordance with the present invention. In a preferred embodiment of the present invention, at least one anode comprises ruthenium, for example, ruthenium oxide. These particular Group VIII metals, in addition to being highly reactive catalytic compounds that produce products with good germicidal properties, resist corrosion to a high degree and do not dissolve easily. Coatings can be applied in a number of fashions including painting or spraying followed by oven baking. Coatings can also be applied by deposition and other methods known to those versed in the art and commonly applied in, for example, semiconductor and other industries..."
 
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Re: Discussion: How do we build a Water Station

The ebay MIOX's aren't homemade, they're just suspicious. Several years ago there was a large theft of the units. The titanium and other metals were removed, then the units sold at a discount. Pretty ingenious, but the units don't work correctly. Not something to find out during a pandemic.

This summer there was a MIOX shortage. The titanium wasn't available. Seems like they would have used an alternative metal, if it worked.

If the MIOX was terribly expensive, I could see doing this, but for $129.95, it seems like it would have to be just for the challenge.

I went back and looked at some of the 3rd world solutions. I just don't see anything better than the MIOX and cheap coffee filters.

This is a very interesting subject.
 
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