Will do on the valve replacement.

Done on the double clamp. I wasn't finished when I took the pics.

I was amazed at how well the plain old clear "marine silicone" held down the hatch. I had used the clear stuff when I replaced the hold down straps in March because I knew I would be going back in. I figured I could just lift the hatch and the seal would come loose, I had to take a knife and cut the silicone to get it to let go.

I'd hate to see what it would have been like with 4200 or 5200 on there.