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lex2lo
06/08/2012, 12:09 PM
Want to fill up me new setup, silly question if I fill up with tap water and run some di resin in a canister filter what results do you think I would get as far as tds?

jformani
06/08/2012, 12:19 PM
not sure how you would do this? your best best is to just start with ro/di and slowly fill up.

fkeeper
06/08/2012, 12:51 PM
you will only remove a relatively small amount of tds, if any, by doing this. The bulk of tds removed by ro/di systems are done by the membrane (after first passing through the sediment and carbon blocks). And this process in done under pressure, not sure a canister filter would be able to accomplish this. Probably best to purchase an ro/di filter, less headaches and less expensive in the long run. hth

lex2lo
06/08/2012, 01:00 PM
Yea that's my next step ro di was just trying to see if I could fill the tank quicker and than filter the water even before I added salt

Randy Holmes-Farley
06/08/2012, 01:31 PM
If you run DI resin in a canister filter and use enough, the TDS of the water will eventually decline to 0 ppm TDS. :)

disc1
06/08/2012, 01:42 PM
If you run DI resin in a canister filter and use enough, the TDS of the water will eventually decline to 0 ppm TDS. :)

What about neutral molecules?

lex2lo
06/08/2012, 01:56 PM
How much do u think I would need to filter roughly 125 gallons of water also should I also run carbon for the chlorine first or just use prime first?

KStatefan
06/08/2012, 01:58 PM
How much do u think I would need to filter roughly 125 gallons of water also should I also run carbon for the chlorine first or just use prime first?

That depends on what is in the water.

lex2lo
06/08/2012, 01:59 PM
True ill get a tds meter and go from there

Psirex
06/08/2012, 02:23 PM
why not buy a full ro/di setup with a dual TDS meter?

Randy Holmes-Farley
06/08/2012, 02:35 PM
What about neutral molecules?

They won't contribute to a TDS reading. They need to be charged to be detectable via conductivity.

But it's true they won't be removed, so in terms of purification of the water, any particulates or neutral molecules will not be removed by a DI. :)

lex2lo
06/08/2012, 02:41 PM
I am going to buy a full ro/di setup but I didn't want to wait to fill the tank but I know I know when u rush things you get rushed results, It was a curiosity question to see if it was possible to fill with tap add a little declorinator and throw some di in a canister and filter the water and than add salt. always trying to see if there are easier ways but I know nothing good comes out of easy lol