Help - Green clear water

[masspool]

Did it ever change color? We're not sure how well they work, but we are fairly sure they are a good presence/absence test for metals.

The CuLator bag has brownish-rust colored spots and streaks, but the whole bag has not changed color. The spotting is about the same color as my skimmer basket, which is probably ten years old.

Also the outer Culator bag has worn through (sort of torn), but there is a second layer-inner bag that is still intact.