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

[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