Green gunk in Alk jug

[Ghxst]

Hi all! I went to check my BRS 2 part levels and my alk container has green/tan precipitation of some sort in it. Calc is clear and I made them at the same time with gloves and Rodi. It’s been 6 months since I first filled them. What can this be?
Thanks!

 

[Greenstreet.1]

Been using BRS for years never happened to me.

Following

 

[Ghxst]

I’ve looked it up several times and there are too many alk related searches that come up or algae but nothing on this. It looks like I should change it either way, I’ll snap a pic when I do

 

[Greenstreet.1]

Did you contact them about it ?

 

[Ghxst]

I wanted to see if it was something common or heard of before hand. But maybe I should first.

 

[Greenstreet.1]

You can tag them on this thread

 

[Ghxst]

@Bulk Reef Supply, What could be going on here?

Thanks!!!

 

[Randy Holmes-Farley Verified Community Expert]

Green worries more a lot more than tan. The alk part only usually has white or off white undissolved sodium carbonate.

Frequently there may be enough calcium or magnesium around somehow (residual from last batch, in the water you added to it, etc.) to precipitate calcium carbonate or magnesium hydroxide.

But green suggests a transition metal such as copper.

What was the water source you used? Was it 0 ppm TDS RO/DI?

Increase the water volume or warm it up and see if it dissolves. Alk supplements are often close tot eh solubility limit, especially if they get cool/cold.

 

[Ghxst]

Will do Dr., thank you! I did shake it and the clumps of greenish material dissolved turning the water brown yellow, so maybe precipitate. It is from RO/DI 6 stage 0 tds and is made in a 3 gallon RODI only bucket then transferred by funnel to the jugs. All I can think of is during maintance some tank water dropped down the alk line? Maybe!

Here is before, and side by side with calc after I stired it. It’s been a long day so I will add the water tommorow. And clean up my wires lol

 

[Randy Holmes-Farley Verified Community Expert]

It would probably only take a few drops of tank water to make a visible precipitate. Hopefully it is something like that.

I probably would just let it settle and not dose it. It's not green enough to worry over.

 

[Ghxst]

It would probably only take a few drops of tank water to make a visible precipitate. Hopefully it is something like that.

I probably would just let it settle and not dose it. It's not green enough to worry over.

Thanks again!! Once it settles should I remove it?

 

[Randy Holmes-Farley Verified Community Expert]

I'd just ignore it.