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Old 03/20/2018, 02:51 PM   #1
mfinn
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Auto flush valve questions

Been a little obsessed with my rodi unit lately, after having issues with a older unit.
I have a new 6 stage now and was thinking about adding a auto flush valve to it.
My source water only has a tds of 67-68.
I was thinking of adding a auto flush valve to the system to eliminate having to manually flush the ro membrane each time I turn on the source water to refill the 32 gallon top off container or to make 60-70 gallon of water for a water change.
I usually flush the membrane for 4-5 minutes, but have forgotten to close the flush valve and let it run for much longer in the past and I would like to automate this step.
Will the auto flush valve do this for me?


http://www.buckeyehydro.com/auto-flush-valves/


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Old 03/20/2018, 03:30 PM   #2
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Yes - the auto flush valve with automatically open and close the flush valve 18 seconds every hour of run time.

Russ


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Old 03/20/2018, 03:50 PM   #3
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Quote:
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Yes - the auto flush valve with automatically open and close the flush valve 18 seconds every hour of run time.

Russ

I primarily need it to do the initial flush after it has been sitting idle.
Is 18 seconds enough?
Or am I looking at this for something it's not designed to do?


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Old 03/20/2018, 04:13 PM   #4
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Are you wanting this flush function to address TDS creep?


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Old 03/20/2018, 04:41 PM   #5
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Are you wanting this flush function to address TDS creep?
Yes.


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Old 03/20/2018, 04:56 PM   #6
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OK. I think you have confused a FLUSH VALVE, which goes on the waste water line and is designed to scour the membrane, and a DI BYPASS which goes on the RO water tube which is designed to address TDS creep. They are two very different things that do two very different things.

http://www.buckeyehydro.com/tds-creep-bypass/

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Old 03/20/2018, 05:26 PM   #7
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OK. I think you have confused a FLUSH VALVE, which goes on the waste water line and is designed to scour the membrane, and a DI BYPASS which goes on the RO water tube which is designed to address TDS creep. They are two very different things that do two very different things.

http://www.buckeyehydro.com/tds-creep-bypass/

Russ
Hmmm.
I see people say you need to black flush the membrane before running the water through the di,,,,, so I thought this was it.


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Old 03/20/2018, 05:29 PM   #8
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I understand. There are many, many people of Reef Central who are confused on this topic.

Russ


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Old 03/20/2018, 05:31 PM   #9
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See this thread for instance: http://www.reefcentral.com/forums/sh...se+flush+valve


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Old 03/20/2018, 06:25 PM   #10
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Was hoping there was a device to automate the tds creep/flush procedure and remove my forgetfulness from the equation.


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Last edited by mfinn; 03/21/2018 at 11:31 AM.
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Old 03/21/2018, 07:36 AM   #11
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Funny you say that. We have a working prototype on the bench as we speak.


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Old 03/21/2018, 08:09 AM   #12
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Funny you say that. We have a working prototype on the bench as we speak.
Put me on the very interested list.


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Old 03/21/2018, 08:10 AM   #13
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Roger... We'll need a Beta tester


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Old 03/21/2018, 12:37 PM   #14
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I would also be very interested in this! I had thought about using two solenoids and an Apex in the past but I don't have the Apex any more and have a small tank so I don't make large batches of water. I would love something automatic.


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Old 03/21/2018, 01:04 PM   #15
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Thanks Rams


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Old 03/21/2018, 06:19 PM   #16
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Thanks Rams
Thank you for all the great service over the years! I hope you can come up with something. I'll snatch it up in a heartbeat. I'm also going to be placing a big order with you sometime soon. I want to change out my RO membrane and I want a giant chloramine filter. I might need some help with getting the parts for the giant filter and plumbing it into my existing unit. I'll holler at you when I'm ready!


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Old 04/15/2018, 03:03 AM   #17
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Yup 100% interested in this also.

I don't know how many times I've turned my unit on, turned on the valve going to the DI resin, come back a couple hours later wondering why I don't have any water in my barrels?

My dumba*s forgot to turn the DI bypass valve off


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Old 04/16/2018, 04:57 PM   #18
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Sign me up... when the beta testers get it figured out, put me on the list to buy one!


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