RO Unit Malfunction, or just quirk? [Archive] - Reef Central Online Community

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Seeing Green

07/27/2011, 04:20 PM

I have a coralife 50gpd filter. Just replaced the membrane and all filters. Used a refillable cartridge for the DI. Water comes out the blue hose, and some out the red hose. The inside of the refillable canister is full of water. But the external housing only fills 2 inches up. Any thoughts?

Water test, not tds, show that the clean water is nitrate and phosphate free. Also zero on the dkh.

Tat2demon

07/27/2011, 05:08 PM

Thats normal. Mine only shows a couple inches of water also.

reeftivo

07/27/2011, 05:11 PM

Normal! The water actually wicks through the element and it's normal to see a trickle with a low level at the outer wall before it's pushed through the cartridge.

Seeing Green

07/27/2011, 05:24 PM

Only reason I was asking was the stock cartridge had the whole thing full, and I wanted to be sure I wasn't completely backwards in my installation (the this end up sign helps)

Thanks!