Help me chose RODI

[Krazy_Karl]

Considering the following options, all in and around the same price range.

https://airwaterice.com/reefkeepers-rodi/typhoon-iii-extreme-150.html

https://www.marinedepot.com/spectrapure-180gpd-cspdi-ro-di-system-w-manual-membrane-flush

https://www.marinedepot.com/spectrapure-maxcap-ro-di-system-w-manual-flush-90-gpd

https://www.bulkreefsupply.com/4-stage-value-plus-ro-di-system-bulk-reef-supply.html

https://www.bulkreefsupply.com/5-stage-premium-plus-ro-di-system-bulk-reef-supply.html

Open to suggestions for different models as well.

 

[Krazy_Karl]

No chloramines used in the water.

 

[Jboone82590]

You cant go wrong with starting with a 4 stage BRS one. They are so interchangeable and upgradeable. Idk about the other ones beucse I have never had them. But I stated with a 4 stage and now I have an 8 stage with a booster pumps and all kinds if stuff.

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[alton]

THOSE YOU LISTED MY VOTE GOES TO THIS ONE
https://www.marinedepot.com/spectrapure-maxcap-ro-di-system-w-manual-flush-90-gpd

 

[kris4647]

My Icecap has really impressed me. It's not the cheapest but the build quality and ease of use are thro the roof.

https://m.liveaquaria.com/product/4733/?pcatid=4733




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[Fishbulb2]

Those are all good systems you picked out, so you really "can't go wrong".

I like a two DI set up so that I can completely deplete the first cartridge then rotate the last one up and then replace the last. That way I don't waste any DI resin. One thing to remember is that using a spent cartridge is likely much worse than no cartridge at all. DI resin works on affinity, so we use the membrane to reject most (but not all of the NaCl) in the tap. The DI resin captures the PO4 that gets through the membrane. A small amount of Cl- will also get through the membrane. Once the DI resin is completely spent, the Cl- will displace the PO4 and can actually increase the concentration of P04 in the product water. A dual set up helps this a lot as you can easily prevent this.

The other recommendation I have would be to save room in your budget for a booster pump in case you need it. Are you sure you have sufficiently high water pressure? Even the best units will underperform if you don't meet the membranes recommended specs.

CHeers,
FB

 

[Krazy_Karl]

Water pressure is no issue, 80psi. Thanks for the input guys. :cheers:

 

[cvrle1]

I use AquaFX Baraccuda 4 stage, and it works without issues. Most of these units all work the same, details are in membrane and filters that you use. Those will make more difference than actual unit.

https://www.amazon.com/AquaFX-Barracuda-Aquarium-Filter-100/dp/B0043FYJ8M

Hell, a lot of people use 4 stage Aquatic Life RO Buddie and update to 100 GPD membrane.

https://www.chewy.com/aquatic-life-ro-buddie-four-stage/dp/146154