DI Resin (Safe ?)

[Wonder]

Need some help on water quality.

I'm using commercial grade DI REsin treating my tap water from TDS reading 50-65 to 0.

I was told by fellow reefer that even if the reading is 0 dosn't mean that the resin might not leach out other harmful chemical that TDS is unable to detect. (i'm not sure exactly what TDS is unable to detect)

I really like some assurance that the water i'm using is safe for reef since i recently facing some algae bloom and sps burn tips for no apparent reason. Furthermore, friends that share with this purchase seems to have some algae issue as well.

I'm also advised that i should slowly treat the water by having output in drips instead of running with high flow even if i manage to get zero reading.

Thanks for any input which can to clear my doubts.

 

[MC Lighting]

hmmm most of us run our r/o through DI resin you mean you are only running water through DI resin with no other filtration?

 

[Wonder]

hmmm most of us run our r/o through DI resin you mean you are only running water through DI resin with no other filtration?

I run tap water (TDS reading = 50-65) thru DI resin (TDS reading = Zero) and use the water to mixed with new salt. No other filtration.

 

[Scooterman]

I'd run a pre filter & carbon then the Di but yea that should work.

 

[Kurt_Nelson]

I run a prefilter/carbon (actually a Kold Steril unit) and then through DI resin. Flow rate is about 60 gal/hour. Input TDS is about 80 and output is 0. I'm not having any issues and have done this for over a year.

If you're not getting an output of 0, then I can see maybe slowing down the flow rate, but otherwise, let it rip through there.

Regarding the DI leaching stuff into the water, if the resin is exhausted then it CAN leach stuff back into the water.

 

[Boomer]

I agree with Kurt, especially if you are just running a DI and no RO. If it says zero then do not worry about it.........but see below

harmful chemical that TDS is unable to detect. (i'm not sure exactly what TDS is unable to detect)

If no RO then anything that is not a charged ion can make it through. If you are, for example, using just a DI and nothing else, any Chloramine in the tap water will go right through it. A TDS meter can not detect molecules, which have no charge. A RO will remove these molecules. A carbon prefilter will break down the chlorine or Chloramine into charged ions, which the DI can take out. And a carbon prefilter can also remove many molecules.

Furthermore, friends that share with this purchase seems to have some algae issue as well.

People need to stop getting the idea that RO, RO/DI or DI water is causing Algae, as something is sneaking through. It is 99.99 % nonsense. ~ 99% of it is from the foods you add, fish/animal wastes and in some cases the additives.

 

[Wonder]

Thanks so much to all for the assurance. I felt convince that i should concentrate my attention on other matter instead of the DI resin. Will make another chamber for carbon filter before DI.

 

[Boomer]

OK, good idea