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Old 05-02-2011, 04:03 PM   #11
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Originally Posted by Gregcoyote View Post
They waste a trickle of water daily. Like having a dripping water faucet. ...
All depends on how much water you're making. Some units are more efficient than others, but you're going to generate anywhere between 2 and 5 gallons of waste water for every gallon of pure water you make. Not really a trickle, in my book, but in the end if you calculate it out it's not that expensive.
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Old 05-02-2011, 04:10 PM   #12
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I routed the waste water from my RO unit out the window into my garden. No water gets wasted this way.
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Old 05-02-2011, 04:15 PM   #13
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I have mine hooked up in my back porch connected to mygarden hose and the waste water also goes to my flowers. I get a 2 for 1 ratio with my unit it seems.
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Old 05-02-2011, 04:16 PM   #14
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I have been using mineral water to top up my tank for a while,but I noticed on the back of the bottle jt reads nitrate 29!!!! This is bad no?? My Lfs said topping with mineral is good !!
Here in Florida there are 4 types of water on the shelf at the grocery store, they are (by label):

Drinking water: RO processed, minerals added (for taste).

Spring water: Carbon filtered, ozone treated.

Distilled

Mineral water: the fanciest and most expensive; I like the flavor of the one bottled in the Czech Republic, but only buy it once every couple of years since the drinking water is 1/20 the unit price. Basically treated the same way spring water is, just comes from springs with higher mineral content.

If you want to top off salt water and you're closer to the grocery store than your LFS, use DISTILLED.

Why? Because the evaporation point of most minerals is higher than H2O, or in other words, most/all of the minerals WON'T evaporate, so you only want to return the part that does... pure water.
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Old 05-02-2011, 04:23 PM   #15
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I use a water meter and pay for any water used I hear the units throw alot away which I would pay for I bug RO water but when I run out I would top up with mineral until I read the 29 nitrate level it's mg/l !!
The cost of RO water depends on its efficiency and the makeup of the source water. At a guess, it would be cheaper for me to buy water from the LFS than install a home unit imo, because Florida has such hard (read impurity rich in terms of RO) water, and the large units that the LFS can justify purchasing are [generally] more efficient.
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Old 05-02-2011, 04:25 PM   #16
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I live in Florida and I can't believe I lived without the ro/di unit for this long. lol it's so much more convenient you can fill up your jugs while watching tv hehehe....and the pure water i am getting out has 0 everything including TDS.
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Old 05-02-2011, 04:39 PM   #17
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If you don't mind me asking what model RO, and did you buy it online or at store? (Trying to talk myself into one lol)
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Old 05-02-2011, 04:45 PM   #18
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I got it off ebay for $59. theres even a thread so you can see what it looks like and how I hooked it up. Lots of good info in that thread. Its under equipment I believe and its called just got my ro/di unit from ebay.

I would link it but I dont know how. LOL
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Old 05-02-2011, 06:20 PM   #19
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I spent more money on a Kent Marine RO/DI system 18 years ago. Had some problems with a leak a few months ago and Kent sent me all the parts for free.
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Old 05-02-2011, 06:21 PM   #20
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Carey,

Just copy the URL from your browser and paste it into a reply.
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