What is This Nastiness?

nickkohrn

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I am battling an issue in which my display is filled with an unbelievable amount of thin, sludge-like particles after turning my return pump back on following a feeding or maintenance. I don't ever notice it in my sump, so it's coming from somewhere between my return pump and return nozzles. You can see, in the following video, how bad it gets:


The system has been set up since a little before Christmas of last year, so it's not that I have years of waste built up in my pipes. It is a bare-bottomed SPS system with three EcoTech VorTech MP40 pumps for flow, so there isn't much detritus that settles in the display. I have two filter socks, a Reef Octopus eSsence 130 skimmer, a (8"x8"x4") MarinePure block for biological filtration (reduces nitrates so much that I have to dose sodium nitrate), and a Neptune Systems COR-15 return pump. I use a Sicce Syncra 1.5 that powers my 25w Pentair Aquatics UV sterilizer and my Bashsea media chamber. Attached to my return pump and the pump that supplies my UV sterilizer and media chamber are Neptune Systems flow sensors.

Today, I took a toothbrush to the inside of my overflow box today because water was running into my emergency drain. On the toothbrush, there was a brown sludge, so I removed as much as I could, but I also noticed some on the inside walls of my overflow box.

Before I drain my overflow box, disconnect the pipes and pump, and manually cleaning what I can reach, I want to ask whether you have any experience with a situation such as this, and do you have any ideas about the cause? Do you have any recommendations, suggestions, or other information that you could share?

Would something like Dr. Tim's Waste-Away or FritzZyme® MONSTER 460 help clean up the insides of my overflow box and pipes?
 
pipe / delivery tube sludge is possible, even in ro systems the lines can clog occasionally and need replaced or flushed out w chems if we want decent sterility for potability. bacteria/floc/fungi need hydration to takeover, not so much direct feed. they'll access it and build bioslicks where water + time exist so I think tube gunk is candidate
 
It is a buildup inside of your plumbing. I have had this issue in the past. I'm not sure if its the lack of nitrifying bacteria in your system that causes it but in my experience that seemed to be the cause. I disconnected my plumbing and used a nylon cleaning brush attached to a dow rod to clean the inside of my pipes and then added more rock and dosed some nitrifying Bacteria and it seemed to do the trick. I believe that Dr Tims waste away is time released nitrifying bacteria so I would imagine it would do the same thing.

Nylon Cleaning brushes
https://www.amazon.com/DiCUNO-Clean...rush+cleaner&qid=1560283251&s=gateway&sr=8-10
 
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