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Old 04/15/2019, 12:13 PM   #1
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Join Date: Oct 2008
Location: Kansas City
Posts: 215
What do use for rodi?

My RODI directly goes to my sump to a float valve. Worried about float valve failing. Is there a solenoid that I could use to only turn on RODI for 30 minutes a day. I'm using a digital aquatic lite for controller.

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Old 04/15/2019, 01:10 PM   #2
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Join Date: Mar 2011
Location: New Jersey
Posts: 2,660
I use one from tied to the apex. It comes on twice a week to fill my top off container and salt mix container. I don't like tieing the rodi directly to the tank. If something fails I know the max amount that can go into my tank, and more importantly I know my sump can handle the excess if it does happen.

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Current tank: 90G mixed reef.

Current Tank Info: 90 gallon
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Old 04/15/2019, 01:52 PM   #3
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Location: DFW,Area
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So your RODI runs short bursts all the time? If so thats now the best my understanding.

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Old 04/15/2019, 03:46 PM   #4
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Location: Reseda, Ca.
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running ro/di in short bursts is not a great idea. The first minute or so out of the ro is very high in tds. This will use up your di quickly....most of us here run the first minute out of ro into drain and also run the ro/di on long cycles...

Please don't feed the bears because the bears will become dependent on free handouts and forget how to take care of themselves ...

Current Tank Info: 75 Gal. Mixed reef
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Old 04/15/2019, 04:17 PM   #5
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Location: North Carolina
Posts: 18,547
Yep...directly to sump is always a bad idea..

Being blunt and having fun
Straight up INTJ
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Old 04/15/2019, 06:01 PM   #6
Vinny Kreyling
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Join Date: Nov 2002
Location: Miller Place, NY
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Run the ATO from a separate container that you only fill when needed.

250 gallon mixed reef, 2 Reefbreeder's Photon V 2, RD 3 Speedy 80 Watt, DAS EX-3 Skimmer, MTC mini cal, 2-3/4" Sea Swirls, Aquacontroller & 6 Tunze pumps.
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