[TowerTalk] Grounding

[Gary Tuck]

I am in the process of putting up a 72' crank-up I got second-hand (no idea 
who made it), which is 60' from the house.  I want to make a single-point 
ground system for the antennas on that tower (3-element tri-bander and 3 
element 6-meter beams), and my other tower (75' Rohn) which is stationary, 
next to the house.  It will have numerous VHF-UHF antennas on it.  I have 
looked at I.C.E., Alpha-Delta, and PolyPhaser arrestors, and can't decide 
which is best.  I also need some ideas about a waterproof housing to put 
them in.  It will be on the brick wall, just outside of my shack.
Any ideas would be welcome.
Thanks - Gary, W4GT