Yikes-De leaking into pool

[Bergerman]

Help- Opened the pool today:) . De leaked into the pool:mad: . The filter grades looks ok 2 grades have a piece of plastic end cap broken but it seems to seal fine to the cap and there is no air leak(bubbles coming out of the return). Any idea how to fix this. It is a Jandy filter.

Cheers
Ed:rolleyes: