A favour to ask if you have a Hanna ULR PO4 reader and RO/DI

[cale262]

Funny this should come up, I was just talking to someone at a LFS the other day, they were telling me that they run their RODI water into a storage tank and then through two GFO reactors before running into their mixing bin, I thought it was just a tad OCD...Either way, I just changed the filters a couple weeks ago, tonight I'll pull out my Hanna and check.

[cale262]

Originally Posted by phi delt reefer

EDIT~~~~ ok i found it.

this di resin should help kill some of your phosphates;



and i will even save you some money - here is a link to their holiday special - think its $22 bucks.

http://www.spectrapure.com/email/cus...reciation.html

I just ordered some of this last week... http://caco3reef.com/nuclear-di-oniz...esin-cartridge

Is it the same as listed in this quote?

[phi delt reefer]

no thats just regular DI Resin. The stuff sprectrapure sells is specially formulated for different applications. I think they have 3-4 different resins based on your water quality.

[spawn]

So now 0 tds does'nt mean no P04? sweet, no wonder I'm over it.

[eli@fijireefrock.com]

If makes any help my last canister of my RODI is is filled with HC-GFO never though tested for it, but I will tonight and post the results. HC-GFO is labeled to remove traces of metals that is not pulled out by your regular RODI system

[phi delt reefer]

Originally Posted by Elias@caco3reef.com

If makes any help my last canister of my RODI is is filled with HC-GFO never though tested for it, but I will tonight and post the results. HC-GFO is labeled to remove traces of metals that is not pulled out by your regular RODI system

i would think that work quite well. Is there any issues with your ro water coming out brownish though? How long do you rinse out the gfo for your ro system?

[eli@fijireefrock.com]

Originally Posted by phi delt reefer

i would think that work quite well. Is there any issues with your ro water coming out brownish though? How long do you rinse out the gfo for your ro system?

I haven't done any testing but I do change the HCGFO every 3rd time I change the filter media I would say roughly every 3000 glns of water.
never had any problems with phosphates and my tank water is always crystal clear as some canreefers could attest to.

[eli@fijireefrock.com]

Sorry Tony as I feel hijacking your thread

[christyf5]

Frankly this is all great information so I doubt he minds. So this HC GFO you're talking about, what kind of flow rate goes through that last canister? I would imagine its not rifling through there but doesn't it go through a bit fast?

[eli@fijireefrock.com]

Originally Posted by christyf5

Frankly this is all great information so I doubt he minds. So this HC GFO you're talking about, what kind of flow rate goes through that last canister? I would imagine its not rifling through there but doesn't it go through a bit fast?

it is compacted in the canister so the water flows fine as my RODI rated for as I recall 150glns/day