using it for a diy sump..As long as it doesn't have a mold inhibiting agent in it, you are fine, though there are far better choices out there for silicone. What are you using it for? Also, almost all silicone is inert after it cure so you shouldn't have any issues if you give it plenty of time after you apply it
Its silicone 1. Jus using it for the baffles.Both GE I and II are safe as long as you give them time to cure. Both are completely inert once cured. Are you using it for the baffles or for the actual sump holding the water? If you are building the sump I'd find a better silicone.
Then it's perfect for that application