Thanks for the reality check folks.
Where I live, the water is of variable quality and can differ from time of the year. For that reason, I actually use bottled water (geez, I sound like a millennial
) - just a cheap one with no additives. I've been doing this for the last 5 or so years. The stock solutions go back into the bottles that the botttled water comes from. To be frank, it could just be the trace minerals in that water.
That being said, as per my original post, I have noticed these floaties before in the dredges at the bottom of the bottles, just not as bad as this!
My main concern is that this was causing issues on the negs. While its not overly prevalent, I have had a few rolls over time that have had inexplained spots and marks - I was just putting one and one together.
So, a coffee filter it is! Just need to make it to the shops to get some.
Cheers