leaking sedra 5000

[Delphinus]

Agree with untamed, suspect that pressure is likely the cause. How is the reactor feed arrangement?

I've found that (especially if I was using an older pump on a reactor) I would sometimes have to run a bead of silicone along volute seam. I figure it's better to be inconvenienced if I ever have to open it (and just reseal it afterwards) than have it slowly leaking. So maybe that's an option here... I would still check to make sure there isn't excessive pressure buildup in the reactor though.