RODI FILTER Advice

[Arc Drafter]

Hey everyone,

I am considering getting this rodi system
http://www.bulkreefsupply.com/brs-5-stage-plus-ro-di-system-75gpd.html

Does anyone on here have it? If so what are your unfettered thought about it? Obviously there are better units out there, but does anyone have any valid complaints about this unit?

Right now my total system is 70 gallons. I am getting ready to do a 150g display tank and 100 gallon refugium. I think 75 gpd will be adequate. My only concern is replacing the filters. My friend has a 100gpd from spectrepure but it cost him almost $1000. will I waste that much money in output water and filters? He is pushing about 800 -900 gallons total water volume. So there is definitely a scale factor there. Just wanted some feed back before I buy the unit. If someone else has a comparable unit for nearly the same price I would entertain it.

 

[Arc Drafter]

Would this one be worth the extra $80?

http://www.bulkreefsupply.com/brs-6-stage-deluxe-ro-di-system-75gpd.html

 

[TimeConsumer]

Do you have chloramines in your water supply?

 

[Arc Drafter]

Do you have chloramines in your water supply?

I'm not for sure. would you mind expanding?

 

[TimeConsumer]

Before deciding on an RO/DI unit I recommend finding out if your city uses chloramines instead of chlorine in the water. If they use chloramine you need a much stronger carbon block (I would recommend 1 micron or less), better yet, 2 carbon blocks. Otherwise a single 5 micron block will suffice.

 

[Arc Drafter]

Gotcha. I went with spectrepure maxcap 90 gpd high capacity. But I'll check into the chlorimine

 

[TimeConsumer]

That's a really nice unit. Assuming it's the Maxcap with the .5 micron carbon block, that should be sufficient to handle chloramines.

 

[jwoyshnar]

Go with a pure water club. You will save a ton of money and they are a quality product

 

[shifty51008]

Go with a pure water club. You will save a ton of money and they are a quality product

i can show you pics of my pure water club unit, every canister cracked and flodded my basement.

 

[jwoyshnar]

i can show you pics of my pure water club unit, every canister cracked and flodded my basement.

I've had mine for 4 years now. No issues. I'm sure as we all know there is nothing out there that is bulletproof. There is many people out there using these without issues. Every person I have turned onto these is still using them with no issue.

 

[shifty51008]

I agree nothing is bullet proof but IMO there are many changes needed to be made with a PWC unit to make it a good unit. like add a TDS meter, pressure guage, horizontal DI, ect. so in the end after makeing those upgrades your in the same price range as a quality unit.

 

[jwoyshnar]

Mine came with all if that except the pressure gauge. Not nreeded where I am cause I have one on my main. Your comments are inaccurate. My total price was $129

 

[Arc Drafter]

That's a really nice unit. Assuming it's the Maxcap with the .5 micron carbon block, that should be sufficient to handle chloramines.

I looked at my city's water treatment report and they do use chloramines. Thank you for your advice. below is the one I picked up.


http://www.marinedepot.com/ps_ViewItem.aspx?idProduct=SP12291&child=SP12291



DESCRIPTION:
SpectraPure® 90gpd MAXCAP® RODI System w/ Manual Flush Valve incorporates a high-silicate removal TFC membrane, 0.5 micron MicroTecâ„¢ Sediment and 0.5 micron Carbon Block Filters, plus the new 33% larger capacity MAXCAP® and SilicaBusterâ„¢ High-Capacity DI Cartridges. Manual flush valve, ASO Valve and Float Valve are included, and two Dual-Probe Inline TDS Monitors measure water purity at 4 different points in the system. You can be always be assured of "œ000 TDS" product water. These systems maximize pure water production through application of the laboratory grade resins used in our specialty deionization cartridges, providing 99.95% Silica Removal and Extended DI Cartridge Life. Ultra-high purity DI water at a half the cost!

 

[Arc Drafter]

Thanks for the replies everyone! I think that I am going to stick with the spectrepure it came highly recommended and meets the requirements of other people's suggestions.

 

[shifty51008]

Mine came with all if that except the pressure gauge. Not nreeded where I am cause I have one on my main. Your comments are inaccurate. My total price was $129

sorry if i'm wrong then, but I just checked their website and none of their units come whith any of the things i mentioned, they don't even sell TDS meters on there which is a very important part of a unit.

http://spectrapure.com/Refurbished-90-GPD-RODI-System

add a tds meter and your all set for about $145

 

[shifty51008]

I looked at my city's water treatment report and they do use chloramines. Thank you for your advice. below is the one I picked up.


http://www.marinedepot.com/ps_ViewItem.aspx?idProduct=SP12291&child=SP12291



DESCRIPTION:
SpectraPure® 90gpd MAXCAP® RODI System w/ Manual Flush Valve incorporates a high-silicate removal TFC membrane, 0.5 micron MicroTecâ„¢ Sediment and 0.5 micron Carbon Block Filters, plus the new 33% larger capacity MAXCAP® and SilicaBusterâ„¢ High-Capacity DI Cartridges. Manual flush valve, ASO Valve and Float Valve are included, and two Dual-Probe Inline TDS Monitors measure water purity at 4 different points in the system. You can be always be assured of "œ000 TDS" product water. These systems maximize pure water production through application of the laboratory grade resins used in our specialty deionization cartridges, providing 99.95% Silica Removal and Extended DI Cartridge Life. Ultra-high purity DI water at a half the cost!

you will be very happy with that unit.

 

[jwoyshnar]

sorry if i'm wrong then, but I just checked their website and none of their units come whith any of the things i mentioned, they don't even sell TDS meters on there which is a very important part of a unit.

http://spectrapure.com/Refurbished-90-GPD-RODI-System

add a tds meter and your all set for about $145

Just about everyone of their aquarium ro units come with horizontal di units. Mine came with three. They use to sell Tds units when I bought mine and here is the gauge from them.
http://www.purewaterclub.com/catalog/advanced_search_result.php?keywords=Gauge&x=0&y=0

 

[shifty51008]

i'm sorry my bad I ment to say vertical DI, the up and down canisters. the vertical canisters are far more efficant.

 

[Epicreefer]

Something to note on any ro system you buy. Ideally every time you run the unit the first 1 gallon of clean water from the membrane, before di, you dispose of down the drain. This is due to creep across the membrane when it is sitting idle. Basically when stagnant the salts on the in put/waste side move across the membrane to the clean side contaminating that water in the cartridge. By flushing this water from the output you can greatly improve the quality of water you collect and reduce the amount of di resin you consume. For instance if you dont flush, an ro works best when producing a higher quantity of water at a time ,say 20g at once every three weeks instead of 1g a day. If producing 1g/ day then every gallon produced contains that contaminated water( let's say 1 cup of 16cups/gal produced while if you make 20g then it's only 1 cup of the 320 cups produced). Best of all you just dump that water down the drain, but the meat of it is short cycling your ro is not anywhere as efficient as long cycling it. As long as you flush that first output almost any setup is adequate, if you have high tds readings then just buy a high quality membrane from spectra pure for about $50, the rest of the system is almost identical, chloramine removal excluded. Just add a T between the membrane out and the di in and a valve on both outputs of the T(about $10 at home depot, one valve runs to drain and other is to isolate your di cartridges). Open the one to the drain and run ten min, close, then open the one to di, and run till you have your water supply and store with both valves closed. The salts will find their way through the tubing seeking out the pure water and bypass the di, I've seen 0.30 phosphate AFTER new di cartridges from a system short cycling, so flush your membrane!

 

[Parker420]

My water company says no chloramine......so which RODI system should I look at?