I just wanted to run this by before I got too confident on it. I’ve been battling a small leak on this cartridge. I’ve replaced O-ring tried magic lube carefully tightened all clamps using mallet and no avail. On the back of each one of the clamps it looks like there’s some sort of glue residue that is pretty thick. Almost like somebody used silicone to try and seal it up when putting the clamps back on. There are no cracks anywhere that I could see. So my last thought is that the clamps are bottoming out on the glue before they can pinch the upper cover enough to really seal it well. So I was going to scrape all this glue off and then try again. Anyone know why this glue might be there?