I knew what you meant beefcake. I just lined the pvc with silicone and poured a ton on gravel in there and let it cure. that one picture just shows the tube full cause I left a bunch in it to let the weight help press it in while it cured. It curves with the pvc.
I realized that I needed to cover up the eggcrate in the front after I had sealed in the FB, so I hat to break the seal and pull it all out today so I could silicone some gravel to the fronts.. AAAARGH! got a little ahead of myself, but it was an easy fix.
Here is where I am leaving it for the night, ran out of black silicone.
