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Great Resin and Best Price By Shaun on 7/8/2014Shaun would recommend this product to a friendThis DI Resin is great deal and is the best price for the amounts sold I have found. It is nice that it is packed with a little extra to make sure the canister is completely full. The color change feature is nice, and is not far off from actual TDS readings showing depletion.
Outstanding value! By Pegasus on 6/9/2014Pegasus would recommend this product to a friendI bought two refills when I purchased the BRS Dual Deionization Canisters. After a year I finally purchased the BRS RO membrane flush kit, which is too little too late. My TDS is reading 22ppm out of the RO membrane, which is pretty high, but I know the DI canisters (actually, the first canister) will trap any solids left in the water. I've filtered over 50 gallons of water, and there's about 1/2" of brown (depleted) resin showing at the bottom of the first canister. At this rate, I will be able to filter several hundred gallons before I need to replace the resin. The resin is relatively cheap compared to a new RO membrane, so it will take several refills to equal the amount of a single membrane cartridge. I will replace it soon, but there's no rush as I have a good supply of resin. The refills are relatively cheap and easy to use. I HIGHLY recommend this to all my reefer friends!
Great Resin at a very good price By Jason C from Michigan on 5/21/2014Jason C from Michigan would recommend this product to a friendI recently bought the 7.5 pounds of BRS color changing resin, and I couldn't be happier. I used to use air water & Ice resin and it just didn't seem to last as long and was more money. I like how the BRS gives you a color change indicting it's time to change it out. I will continue to use this product and recommend it completely.
Best on the market! By Sammy Reefer on 5/18/2014Sammy Reefer would recommend this product to a friendI've been using this for years. Water is 0 TDS on Spectrapure system. I added an additional 2 stages so I have a 4 stage DI post RO. My favorite BRS product!
Easy and effective By Danny Boy on 5/8/2014Danny Boy would recommend this product to a friendI let my last batch of DI resin go too long and the algae bloom took over my tank in no time. The resin is super easy to repack (watch the BRS video) and the effects after one water change are very noticeable! They have a good shelf life. So pick up a few!
Works perfect By Eric on 5/7/2014Eric would recommend this product to a friendUse with reusable canister. Changes color like it should. Tds zero. Great product
Great Stuff By Rick on 4/18/2014Rick would recommend this product to a friendBy far the best resin I have used. The colors are easier to tell when the resin is used up than with most.
No surprise here! By Tommy Gee on 4/12/2014Tommy Gee would recommend this product to a friendIf you've evered wonder when it's time to change out your DI Resin, wonder no more!
BRS's Color Changing Resin, when new, is blue.
As the media becomes exhausted, it changes color i.e. from blue to brown allowing immediate (easy) identification. How easy is that!
If you want to take the guesswork out of resin replacement, guess no more. You will not be disappointed.
Good Product By Gary on 4/8/2014Gary would recommend this product to a friendWorks well, fills the canister with a little left over.
Peace of Mind By Saltwater Lady on 4/8/2014Saltwater Lady would recommend this product to a friendNice to have the extra security when making RO/DI water. Keeps the TDS meter in check when the color changing and the TDS meter start showing when it's time to change the DI resin.
wish i had discovered this sooner By david on 3/28/2014david would recommend this product to a friendI wish I would have discovered this sooner. Makes me cringe knowing all the money wasted with the throw-away DI filters. Color changes to let you know to watch your TDS meter.
worth every penny By nate on 3/19/2014nate would recommend this product to a friendThis last longer than the resin that comes with the unit
In this episode of BRS TV we are going to go over ...
In this video we show you how to properly pack DI ...
In today's episode we are going to go over when t ...
Ask a Question About 'BRS Bulk Deionization Resin - Color Changing'
Previously Asked Questions
by john on December 22, 2013, @6:42 AM
di resin straight out of a brand new bag already has 40-50% brown in it.. is it already exsausted??
Bulk Reef Supply Hi John,
No it is not. Half of the DI resin beads are always brown and half are blue. The brown always stay brown and the blue resin changes from blue to clear as it is exhausted giving the appearance that the entire cartridge has turned brown.
by Earl on January 4, 2014, @11:12 PM
I noticed that your DI resin is vacuum sealed. If I purchase the larger bag that has 6 changes in it, once I open the bag, it will no longer be vacuum sealed. Will this affect the product in any way?
Bulk Reef Supply Hi Earl,
If you use the resin quickly it wouldn't have any sort of noticeable effect if you close the seal after each use but if you are purchasing and planning it for long term storage then you would be better off purchasing the individual bags.
by Valerie on January 29, 2014, @7:51 AM
Ok, I'm using a color change di resin now, not BRS, but same principle. I'm kinda new to ro/di making. The bottom of my cannister has a light brown color too it now that goes up about 2 inches. TDS is still at 0. Do you change it when just a little brown going up or wait till whole cannister has turned brown? Sorry to be so naive but like I said not been doing this long. Thanks for any suggestions you may have.
Bulk Reef Supply Hi Valerie,
You want to wait until the TDS starts to read above 0 as the TDS meter is the ultimate say, but generally speaking that is going to correspond with the DI resin turning almost entirely brown.
by Alan Cox on February 8, 2014, @4:03 AM
Will your RO/DI filters fit my Coralife II
Bulk Reef Supply HI Alan,
They sure will. All of the above (and basically any RO/DI unit) uses standard 10" cartridge sizes.
by Andrew on September 6, 2013, @10:38 AM
Does the color changing di turn noticeable brown? My di has brown in it however you really have to look close to see it.
Bulk Reef Supply Hey Andrew,
The DI resin changes from a dark blue/black color to a light gold yellow color. You should easily be able to tell from across the room!
BulkReefSupply.com takes pride in the proper packing of our DI Resin. DI resin begins depleting when exposed to air. To avoid this, we package all of our DI resin in foil-lined 4mm Mylar bags AND vacuum seal it so no air is left in the package to deplete the resin while its waiting to be used. Our resin can remain packaged this way for 2 years without losing its capacity. Our bulk DI bags are perfect for reefers who process a lot of water or otherwise go through resin quickly. The bags are resealable via a featured zipper lock. Keep in mind this won't be as good as the original seal so we recommend them only for reefers who need a high volume of DI Resin. Otherwise purchase the single refill packs for optimal freshness up to two years.
To get maximum life from your DI resin please takes the following steps
- Ensure optimal operation of your RO membrane. The higher your membranes rejection rate the fewer TDS your product water will contain resulting in longer lasting resin. The best way to keep the membrane rejection rate up is to monitor and change your prefilters appropriately as well as maintain at least 50psi going into the membrane.
- Ensure the resin is packed in the cartridge securely. The resin should be packed very tightly. When squeezed, there should be almost no flex to the cartridge.
- The initial couple minutes of water from your RO membrane will always be high, this is commonly referred to as TDS creep. Diverting the first few minutes of water down the drain can often greatly reduce DI resin consumption.
- Maintain low levels of carbon dioxide in your water supply. Excess carbon dioxide will deplete DI resin quickly. If you are depleting resin quickly and have already :addressed the two options above, excess carbon dioxide is the likely culprit. You have two choices:
- Collect the water coming from your RO system in a large container, add a powerhead or air stone and allow the CO2 to gas off. Then pump the water though your DI resin.
- Skip all that mess and just buy resin in bulk.
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