R/O Systems - The Planted Tank Forum
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post #1 of 8 (permalink) Old 08-02-2018, 12:14 AM Thread Starter
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R/O Systems

What R/O systems do you use and recommend?

Im interested in getting an R/O system, not for my planted tank, but for increasing the hatch rate from my 2 discus pairs. As it is, the eggs from spawn are fertilized, but calcify thus preventing hatch. Im sure that what is used for a planted tank would be just as good ( just as applicable ) for the raising of fry.


Out of tap:
My pH is 7.4
KH 3/ GH 5
TDS fluctuates between 115-125 during year
Goal TDS ( this is the important #) 70


Thank you!


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post #2 of 8 (permalink) Old 08-02-2018, 12:22 AM
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I am on a tight budget, so I use Aquatic Life's RO Buddie. I have used this for 5 months and recently exchanged the carbon filter.

It lowers my TDS from 180 to 7.
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post #3 of 8 (permalink) Old 08-02-2018, 12:25 AM Thread Starter
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Nice- thank you. That is one I did see on Amazon.


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post #4 of 8 (permalink) Old 08-02-2018, 01:10 AM
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I have one of those and also a system from bulk reef supply. Bulk reef was more expensive but about 60% less waste water for me


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post #5 of 8 (permalink) Old 08-02-2018, 01:49 AM
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Highly recommend SpectraPure. They have refurbished units for cheap... Their brand of filter cartridges last a very long time and are cheaper to replace compared to many of the amazon ro/di systems. Might be worth looking into their 4 stage 90gpd unit.
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post #6 of 8 (permalink) Old 08-02-2018, 01:54 AM
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Quote:
Originally Posted by Discusluv View Post
What R/O systems do you use and recommend?

Im interested in getting an R/O system, not for my planted tank, but for increasing the hatch rate from my 2 discus pairs. As it is, the eggs from spawn are fertilized, but calcify thus preventing hatch. Im sure that what is used for a planted tank would be just as good ( just as applicable ) for the raising of fry.


Out of tap:
My pH is 7.4
KH 3/ GH 5
TDS fluctuates between 115-125 during year
Goal TDS ( this is the important #) 70


Thank you! <a href="https://www.plantedtank.net/forums/images/smilie/icon_smile.gif" border="0" alt="" title="Smile" >:-)</a>
SpectraPure 90GPD Refurb unit. I run two of these, man are they amazing. My tap water TDS is currently around 260, GH is 13+. TDS from RODI is zero, as expected, from both units. Remineralize to parameters you want, 70 TDS is pretty soft! I think @FreshPuff is probably talking about these same units.

Edit: This is what I run - http://spectrapure.com/RO-RODI/RODI-...PD-RODI-System
I'm not seeing their refurb offer anymore, might just be missing it. It was this unit, but for $129 and no warranty beyond 30 days.
@Discusluv I would avoid systems like the RO Buddie - cheap up front, but cartridges do not last long and are way overpriced to replace. I imagine you'll be replacing a lot of water since you're doing multiple water changes per week, so this should be a major consideration. The Spectrapure units use a standard cartridge that be used across many lines of RO units, last a long time, and aren't terribly expensive to replace.
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Last edited by mgeorges; 08-02-2018 at 02:15 AM. Reason: .
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post #7 of 8 (permalink) Old 08-02-2018, 02:58 AM Thread Starter
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Quote:
Originally Posted by mgeorges View Post
SpectraPure 90GPD Refurb unit. I run two of these, man are they amazing. My tap water TDS is currently around 260, GH is 13+. TDS from RODI is zero, as expected, from both units. Remineralize to parameters you want, 70 TDS is pretty soft! I think @FreshPuff is probably talking about these same units.

Edit: This is what I run - http://spectrapure.com/RO-RODI/RODI-...PD-RODI-System
I'm not seeing their refurb offer anymore, might just be missing it. It was this unit, but for $129 and no warranty beyond 30 days.
@Discusluv I would avoid systems like the RO Buddie - cheap up front, but cartridges do not last long and are way overpriced to replace. I imagine you'll be replacing a lot of water since you're doing multiple water changes per week, so this should be a major consideration. The Spectrapure units use a standard cartridge that be used across many lines of RO units, last a long time, and aren't terribly expensive to replace.


Okay, thanks for that tip on the RO Buddy, I really donít want a unit that is pricey to replace the cartridges when there are less expensive options but better quality ( more expense up front. ) I was figuring 150.00 for budget so Iíll look at this unitcthat you have recommended.


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Quote:
Originally Posted by mbkemp View Post
I have one of those and also a system from bulk reef supply. Bulk reef was more expensive but about 60% less waste water for me


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Mike, I think you recommended this to me a while back ago and I forgot about this one. Iíll check this out as well.


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How does this one compare to the others recommended?

https://www.amazon.com/gp/product/B0...KIKX0DER&psc=1


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Last edited by Darkblade48; 08-02-2018 at 11:31 PM. Reason: Please use the edit function for back to back posts to keep threads cleaner
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post #8 of 8 (permalink) Old 08-02-2018, 03:53 AM
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Yup that's the exact the unit I was talking about, @mgeorges! Hmmm, you're right... I don't see any refurbished units listed on their site.
I think the next best thing would be this one here CSPDI Standard 90-GPD RO/DI System - CSPDI-90

The TDS meter is nice to have... Easiest way to know when your filters need replacing.

BRS is not bad but they use 1 micron sediment and carbon block filters. Spectrapure uses .5 micron high efficiency filters (better). This means better filtering and longer life with Spectrapure. Something to keep in mind.

Bump:
Quote:
Originally Posted by Discusluv View Post
How does this one compare to the others recommended?

https://www.amazon.com/gp/product/B0...KIKX0DER&psc=1
When sizing up the ro/di units, focus on the filter's micron filtration capabilities (I'm sure I could have worded that better lol). Smaller the number the better. The unit above consists of 1 micron sediment and 2 micron carbon. There are better options out there.
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