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Old 01-11-2005, 08:25 PM   #1
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Using Drinking Water?

This may be a really stupid question, but is it okay to use purified drinking water (the kind you get from those machines at the grocery store) for tank water?
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Old 01-11-2005, 08:29 PM   #2
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First of all, what a pain to lug all the water I would need on a regular basis (2+ gal/day) from my local market.

Second, those machines are notorious for poor maintenance, I would be suspect. I often wonder what kind of filtration they are getting at thousands of gallons per day when I can't get more than 100 gal out of my until at full pressure (which I don't have, so I get about 20/day)

Don't skimp on the most basic requirement...water. Buy an RO/DI.
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Old 01-11-2005, 08:31 PM   #3
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Well at the moment, it's either lug the water from the store or the LFS, and the store happens to be closer.

We plan on getting an RO/DI unit soon, but until then, we're stuck hauling a couple of 5-gallon jugs around.
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Old 01-11-2005, 08:46 PM   #4
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How do we know that this water is even truly put through the RO process and not just some toilet water? I wound't use it. At best, I would use distilled water from a well known manufacturer if I didn't have an RO system.

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Old 01-11-2005, 08:59 PM   #5
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The only thing that would suggest it's not toilet water is that you would have to pump from the toilet to the machine...and no one that is ripping people off like that would go to that much effort...unless it was a two story building and the machine was on the first floor.

I guess overhead pipes coming into the machine would be a bad sign.
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Old 01-11-2005, 09:02 PM   #6
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Could we also factor in copper piping as a possibility? The source is unknown with a vending machine.

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Old 01-11-2005, 11:35 PM   #7
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Very true.
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Old 01-11-2005, 11:55 PM   #8
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If i had a small tank i might just use the lfs for water but for a larger tank an ro/di unit is bassic equipment. imo
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Old 01-12-2005, 01:22 AM   #9
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Some "health food" stores have RO machines that allow you to bring your own container and refill. Near me, I know that Vitamin Cottage, Whole Foods, Alfalfa's and Wild Oats have them. (that's what I used to use to make beer!) now it's RO. Otherwise, if it is marked "Spring Water or Natural" it mine as well be coming out of your faucet. As a last resort I would use the distilled.
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Old 01-12-2005, 12:12 PM   #10
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Quote:
Otherwise, if it is marked "Spring Water or Natural" it mine as well be coming out of your faucet.
Spring water is actually all natural from springs underground. However, distilled water would be the best for a marine tank if you don't have an RO.

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