Hi Phosphate w/Red Sea Coral Pro

[newsalt]

I was shocked when I randomly check a batch of freshly mixed saltwater using Red Sea Coral Pro. I'm using RO/DI water and I measured 0.14 with a Hanna photometer. Any thoughts?

[Steven Pro]

Have you checked the TDS and phosphate content of your RO/DI water? Your DI cartridge might be getting old.

[gman19]

I have a bucket of this salt coming today as I measured a high silica content in a bucket of another brand...was any follow-up made on this? Was the DI/RO checked? Was PO4 truly present in the salt mix??

[Steven Pro]

I talked to this gentleman a bit on the phone. His phosphate levels were increasing the longer the water sat in its current location even while running a GFO reactor. I asked him to relocate the water vessel to elsewhere in the house. My feeling was that it was picking up phosphate from contamination where it was located.

[Henry718]

Was he using it for a toilet?!?!?!

[Dlhirst]

That would make nitrates, not phosphates. Unless he was washing his hands in it too.;)

[binford4000]

I've been useing this salt for awhile,I have not seen this happen.I think the storage or RO/DI is a good call.In fact I can't think of anything negative to say about it which is kinda boreing :sleep: