How did you anchor down the tower to the top of the kegerator?
I cut a hole in my bar, anchored the tower to the bar, and then put the PVC spacer between the bottom of the bar and the top of the kegerator.
Do you have to seal the pvc to the top of the kegerator and to the underneath of the bartop? I'm probably looking at the same set up. I'm thinking (hoping) that just a couple inches of pvc and insulating the beer lines should be enough.
I used a section of PVC, insulated with pipe foam on the inside, as a "spacer" between by bar top and kegerator underneath.
I cut a hole in my bar, anchored the tower to the bar, and then put the PVC spacer between the bottom of the bar and the top of the kegerator.
This is basically what I did too, I find it works pretty good too! I can fit 3 soda kegs in my kegerator but have taps for two, the spare keg is usually carbonating up or lagering... I just picked up another kegerator so I'm doing a side by side setup with a coffin-box tower with the lines running up on the left and right sides (from the two kegerators)I did not "seal" it - but I cut it very close, so it is tight between the top of the kegerator and the underside of the bar. I basically duct taped some thin rubber padding to the ends of the PVC pipe, so it compresses a little bit when I wedged it in there - so it ends up being pretty tight.