help-grey gummy substance from abs/pvc or stearate or other?

[aquababy]

we got this such sick substance in the chlorinator,which is made of ABS as are the unions on it.
we always use TCCA(never use biguanide) and is now well-balanced except for a high cyanuic acid content.
Unlike the last time, we change another brand of trichlor.we think this is the key.but what this substance really is ?

[Guest]

If someone encountered this problem,pls help me!

[Backglass]

Ugh...boy is that nasty!

Whatever it is, it's alive and slimy. Please post a full set of test numbers so we can se where you are at.