RO/DI water waste - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 5 Old 01-15-2014, 09:19 PM Thread Starter
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RO/DI water waste

Is there a thread on here talking about RO/DI waste water???

I was wondering if I had 2x 55 gallon drums and filled one up with regular tap water, then ran a stong enough pump to the RO/DI unit, can I fill the empty 55 gallon drum with the good water and just put the waste water back into the 2nd drum with the tap water ?? Does it sound like that would work so you don't get the 4 to 1 ratio waste water.

There is nothing wrong with the waste water its just didn't get thru all the filters so if you keep recycling it thru the RO/DI unit there will be no waste water and you only need room for the 2 big drums. Does it sound like its doable??
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post #2 of 5 Old 01-15-2014, 10:03 PM
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Sure it's doable, you'll be replacing membranes to get to your small bucket of leftover sludge, spending much more than you would on thousands of gallons of water. You'll also need a pump that pushes minimum of 40 psi for your waste water that you plan on recycling, 60 psi or more would work more efficiently. You're better off running the waste into an African cichlid tank, or watering your garden with it.
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post #3 of 5 Old 01-16-2014, 06:31 PM Thread Starter
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The problem is my future tank is going to be in my finished basement which will be toward the front of my house, and the utility room will be where my filtration will be and I will have the RO/DI unit in there.. The problem is I have no drain in that room to my sewer line and I don't want to be pumping out thousands of gallons of water into my front lawn to fill my 220g tank.. I have to come up with something creative to route my waste water to.. I don't have a big front or back yard. so I thought if I just keep rerouting the waste water back into the RO/DI unit I can solve my issue.
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post #4 of 5 Old 01-16-2014, 08:06 PM
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Extend the waste line from the RO unit to a drain. If you have a finished basement I sure hope you have a floor drain somewhere, along with a sump/ejection pump. If not run it upstairs.
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post #5 of 5 Old 01-16-2014, 09:52 PM Thread Starter
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Yea well as I said its in the front of my house and my kitchen upstairs is in the middle... and my drains are all toward the back of the house... Will have to really think of a good way to run the waste water. I built the basement with my father so I should be handy enough to figure out how to do this.. will need some time to plan :)

I don't get water in my basement and I don't have a sub pump. Its a sealed basement so the only thing I have is outside or run 30 foot of tube to the nearest sewer drain pipe, wont be easy.. but thanks...
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