Dell January 28, 2017 Share January 28, 2017 Hey, sorry I know this is off topic but I have searched it and cant find the answer. I have both salt and freshwater tanks but was wondering that In a freshwater tank is DC tap water safe, as long as I use something like Prime or another dechlorinator?? Or should I stick with RODI? Or the waste water from a RODI unit? Thanks, Dell Link to comment Share on other sites More sharing options...
zygote2k January 28, 2017 Share January 28, 2017 I use DC tap water in salt and fresh. Sometimes it's the only option, but it is very dirty water. If I run it through an RO/DI system, I usually have to change the cartridges 3-4 times a year. Use bottled water instead.... Link to comment Share on other sites More sharing options...
Dell January 28, 2017 Author Share January 28, 2017 Ok, thank you! Link to comment Share on other sites More sharing options...
mr.x-ray January 30, 2017 Share January 30, 2017 A lot of people use RO in fresh water now, especially planted tanks. I've started using it in the GF's tank also. Make sure you test though. You might have to add a buffer or Equilibrium (Seachem) for GH and minerals. Link to comment Share on other sites More sharing options...
Dell January 31, 2017 Author Share January 31, 2017 (edited) I have an RODI for my salt tank. Can I bypass the DI and use it?? I have stuff to remineralize it with. Equilibrium and Replenish. Sent from my iPhone using Tapatalk Edited January 31, 2017 by Dell Link to comment Share on other sites More sharing options...
sen5241b January 31, 2017 Share January 31, 2017 TDS zero water has no Ph and you need to add something to it to give the water ph. We get our water here in Arlington from the same source as DC and it is bad water. Never use it. (My Mom lives in Dewey beach Delaware and the water comes out of the tap at 70 TDS) Link to comment Share on other sites More sharing options...
mr.x-ray January 31, 2017 Share January 31, 2017 I have an RODI for my salt tank. Can I bypass the DI and use it?? I have stuff to remineralize it with. Equilibrium and Replenish. Sent from my iPhone using Tapatalk Yes you can. "T" off between your RO and DI. Keep an eye on ph and others. My well water comes out at >300tds. Link to comment Share on other sites More sharing options...
Dell January 31, 2017 Author Share January 31, 2017 What will happen if I use both? The RO and DI?? Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
sen5241b February 1, 2017 Share February 1, 2017 What will happen if I use both? The RO and DI?? Sent from my iPhone using Tapatalk I tried a 4 stage system and a poor DI system and neither delivered TDS zero water. 5 stage filter systems generally work well as does a good DI system. The more cheaper pre-filters you have before the RO membrane the longer that membrane will last. Link to comment Share on other sites More sharing options...
mr.x-ray February 1, 2017 Share February 1, 2017 I tried a 4 stage system and a poor DI system and neither delivered TDS zero water. That's strange. The last 3 houses I've been in have had a TDS of 150-500 out of wells. 4 stage with no DI has brought down to 2-5 and 0 with single DI. Spectrapure 100gpd system at 40psi and my temps very widely. I do run a duel DI now to go longer between replacements. Can run for a year before post DI starts to show 1. Link to comment Share on other sites More sharing options...
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