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Old 10-29-2013, 05:58 AM   #1
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Reverse Osmosis Water Purification

Has anyone considered using one of these units to recycle their Grey Water into Fresh Water thus extending the time between needing to dump the Grey Tank and refill the Fresh Water tank. I know at first everyone thinks - YUCK, but Reverse Osmosis units can tank any water and make it completely safe for drinking.

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Old 10-29-2013, 06:13 AM   #2
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As little as I know about R/O.........it has a superfine mesh filter that would probably plug up instantly.

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Old 10-29-2013, 06:22 AM   #3
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The small RO units that will fit in an RV will not be able to filter out soap scum and grease from dishes etc. If you wanted to tow a trailer with a military size RO plant it would work great for filtering the water in your gray tank.
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Old 10-29-2013, 11:51 AM   #4
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If you wish to re-cycle gray water.. Pump it in to flush the toilet, and nothing else.

Even then you may find out a surprising truth.

There are many companies which sell products guaranteed to de-oderise your black tank.

It is the GRAY tank that stinks to high heaven.
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Old 11-01-2013, 03:13 AM   #5
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I always dump a little of the black water tank stuff in my gray water tank too.
I have worked in water treatment for over 40 years, I would not recommend trying to filter your gray water and drink it without some testing. Unless you just like to have negative experiences when sitting on the throne. Keep lots of books in the library..

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Old 11-13-2013, 01:58 PM   #6
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Under normal conditions when a reverse osmosis unit is being fed potable water it sends 3 gallons of water down the drain for every gallon it produces of treated water. It is just not practical for RV's.

I have saved a few one gallon laundry detergent jugs and catch kitchen sink water to flush with. I have a water shut off valve at the toilet to stop the fresh water from running while flushing with gray water. A surprise was that the soap in the dish water tends to keep the toilet cleaner than normal.

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