Anyone know what kind of media I need for my rodi unit?

[Zaven D]

Hi Everyone,

I am needing to change the media in my Rodi unit the thing is I’m not really sure what replacement filters I need as I was given this unit and the cartridge doesn’t have any special markings and what not.

Anyone able to recognize this this unbranded unit, and or recommend a replacement filter if y’all need me to I can pull out the other cartridges to show you what those look like.

 

[Water Dog]

For starters, you will need a 1 micron sediment filter in the first stage and a 1 micron carbon block in the second stage.

2.5" x 10" Purtrex Depth Sediment Filters - GE Water Technologies

Most sediment filters in aquarium RO systems are inexpensive surface filters that quickly lose their effectiveness when the surface becomes clogged. Purtrex Depth Sediment filters are true graded density filters that capture larger particles at the surface and smaller particles towards the...

www.bulkreefsupply.com

CTO Plus Carbon Block - 1 Micron - Matrikx

Kx Technologies MATRIKX brand carbon blocks are the most trusted and widely used carbon blocks in the world. The 10” size is the industry standard and will fit our systems, as well as virtually every brand of RO system that uses similar looking carbon blocks and the 20" size, works in our legacy...

www.bulkreefsupply.com

In order to recommend the proper filter for the third stage I must ask:

1). Are the second and third canister attached?

2). Or does the second canister attach to the RO membrane housing, then does the output of the RO membrane housing attach to the third canister?

If the answer is #1, then you’ll need and additional carbon block. Then you need to look into purchasing a DI stage for your RO system.

Single Deionization Canister with DM-1 Dual TDS Meter

Single deionization add on canister kit complete with Dual TDS Meter and pre-packed color changing DI cartridges! Dimensions - 14" x 6" x 5.5" Dual TDS Meter already installed Perfect for adding additional DI stages to your RO system Cartridges come with canisters full of Color Changing DI...

www.bulkreefsupply.com

Dual Deionization Canister with DM-1 Dual TDS Meter

Dual deionization add on canister kit complete with triple TDS Meter and pre-packed color changing DI cartridges! Dual DM-1 TDS Meter already installed Perfect for adding additional DI stages to your RO system Cartridges come with canisters full of Color Changing DI Resin Cartridges are...

www.bulkreefsupply.com

If the answer is #2, then you’ll just need a DI cartridge and you’ll be all set, though adding a triple TDS meter would be immensely helpful to allow you to measure your source water, post RO membrane and post DI resin TDS.

Pre-Packed Bulk Deionization Resin (Color Changing)

Deionization (DI) Resin is used as the last stage of a RODI system to reduce any remaining total dissolved solids (TDS) down to undetectable levels, making perfect water for reef tanks. Professionally Packed Color Changing (Changes from blue to brown as it depletes) Vacuum packed in foil-lined...

www.bulkreefsupply.com

Triple Inline TDS Meter TRM-1

Why does BRS recommend this? Using a RODI system without a TDS meter is like driving a car without a speedometer and gas gauge. At some point you will end up in trouble. With RODI systems it is TDS that you will want to monitor for performance and filter quality. If you have a single or dual...

www.bulkreefsupply.com

 

[Water Dog]

Also, would you be needing an RO membrane as well? I didn’t see an RO membrane housing in your pictures. If it doesn’t have an RO membrane housing, you might be better served picking up a new unit from BRS as you’ll need to also buy a RO membrane housing, RO membrane, flow restrictor and a bunch of tubing and connectors as well.

 

[andywe]

Contact BRS and show them in detail what you have. Adam will set you up with the right things.

 

[AZMSGT]

Waterdog has provided a great couple posts for you to look at and consider. Your unit looks just to be a filter system and NOT an RODI unit. Although it can be easily converted to RODI.

 

[Zaven D]

Also, would you be needing an RO membrane as well? I didn’t see an RO membrane housing in your pictures. If it doesn’t have an RO membrane housing, you might be better served picking up a new unit from BRS as you’ll need to also buy a RO membrane housing, RO membrane, flow restrictor and a bunch of tubing and connectors as well.

Water dog thank you so much for your help! I have gone ahead and swapped out my unit with a brs 6 stage. Now I am with another situation on my hands. I don’t get enough pressure into my system around 10psi. Trying to find a booster pump that can help alleviate that problem without burning it out.