Yeah, my brute can always has some kind of funky smell after a while, maybe I need a circulation pump in there. I definitely rinsed it out last night and wiped it down. Could feel the slimy biofilm on the sides. Nothing I imagine could be harmful, it's such a low nutrient system that this bacteria is a first colonizer that doesn't really attack anything. I believe I read somewhere that once resin becomes depleted, it can start releasing stuff. I know that can happen with carbon, but I'll have to do some reading to verify.
My RODI tub smells like cat must to me. Always has. I give it a nice vinegar wipe down every now and then.Definitely worth it for the dual DI stage! And I run a dual Carbon stage too. I've had the same DI resin for like 3 years without it depleting. What's your TDS going into the DI?!
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YES! That's exactly what the brute can smells like after the lid has been closed on it for a while, cats.3 years without depleting?! Geez! Where are you getting your DI from? I'm not real positive about the TDS going into the DI. The cheap in line TDS meter says anywhere between 9 and 19 any given day. I don't know how much I can trust that thing. Back before my good in line TDS meter broke, it was usually around 8-12.
I'm fairly certain now that it was the RO/DI water. The coral polyps are starting to come back out on my PO'd corals and I noticed that the anemones in the fish room trough were getting pissed off when I was topping off with the left over water from the old RO/DI reservoir. My corals will probably take a while to get back to full health, but I think I can draw a fair conclusion that the bad DI was the main culprit. I changed all kinds of other things, some of which needed to be changed, so some good came out of it.
It's the color change resin from BRS. I always have less than 10 tds going into the dual Di stage. Works great.
Do you flush your membranes? Highly recommended! Also bypassing the Di for a minute or 2 when you first start to make water. (I give it to my dogs!)
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