- Location
- Somers, NY
So, I have been reefing since 1988
Got myself a RODI unit in 2003 wanting to improve the water quality that I was using for my tank.
I have a well, and the water seems to plow through DI resin rather quickly. I just accepted that fact.
fast forward 20 years, a lot has changed & there is a TON of info and experience feedback out there.
What I wanted to try.. was to change up my RODI system to remove as much CO2 that is in well water.
Some people were saying to do a large open container of well water prior to RODI unit with an airstone to blow off the CO2
before running through the RODI unit ( which is a good way to do it ).
This is what I did differently
I took the DI unit off of the main system. Still run 1&.5 micron sediment filters to the RO membrane, then into a carbon filter where the DI resin used to be. That water goes to a large open container where I have an airstone to blow off the CO2.
The RO unit produces a good amount of water way more that evaporation needs so I let the container fill and then turn off
the RO unit for week until the container gets near empty.
Here is my interesting finding .... I use an apex DOS to control for evaporation, slowly the aerated water is pumped through
a DI canister This slower flow rate gives more contact time in the DI canister, and the slower flow rate does not out strip the
DI resin's ability. It noticeably lasts much longer before needing to be changed.
Share your experience if you have tired something like this.
Thanks,
Jim C,
Got myself a RODI unit in 2003 wanting to improve the water quality that I was using for my tank.
I have a well, and the water seems to plow through DI resin rather quickly. I just accepted that fact.
fast forward 20 years, a lot has changed & there is a TON of info and experience feedback out there.
What I wanted to try.. was to change up my RODI system to remove as much CO2 that is in well water.
Some people were saying to do a large open container of well water prior to RODI unit with an airstone to blow off the CO2
before running through the RODI unit ( which is a good way to do it ).
This is what I did differently
I took the DI unit off of the main system. Still run 1&.5 micron sediment filters to the RO membrane, then into a carbon filter where the DI resin used to be. That water goes to a large open container where I have an airstone to blow off the CO2.
The RO unit produces a good amount of water way more that evaporation needs so I let the container fill and then turn off
the RO unit for week until the container gets near empty.
Here is my interesting finding .... I use an apex DOS to control for evaporation, slowly the aerated water is pumped through
a DI canister This slower flow rate gives more contact time in the DI canister, and the slower flow rate does not out strip the
DI resin's ability. It noticeably lasts much longer before needing to be changed.
Share your experience if you have tired something like this.
Thanks,
Jim C,



