[TowerTalk] mounting a new tower on an existing concrete base

[Stephen Reichlyn]

I vaguely remember some conversation about the possibility of re-using a 
concrete base for a new tower using
pier pins. The pier pins could be inserted into the concrete using a 
special concrete drill bit and an epoxy glue
for the bolts. Can anyone give me some guidance regarding where to purchase 
a kit or the parts to do this
work? Has anyone on the list actually done it? How deep must the holes be 
drilled?

73,
Steve AA4V