Hello, Yesterday I cleand my eheim 2262 that was on my 200 gallon, woke up this morning to a very small puddle at the bottom of my stand and it's leaking from the LID of the canister. I figured maybe the O-ring got jostled when I cleaned it so I tried to re-seat it, but this O-ring has little bumps in it that I'm pretty sure go where the clamps go. I have tried putting the flat part on the bottom and I have tried putting the flat part against the side of the canister on the lip, but no matter what I do it still leaks, and it leaks worse now. Can someone please help me? I'm getting very frustrated with this.