Originally posted by trompet3
I thought the walls of tanks that size were tempered and couldn't be drilled?
Actually, it's usually only the Bottom (but not on all tanks) that is tempered...not the sides...
My 210 has a tempered bottom, but it came pre-drilled (RR) I just had a couple "extra" holes drilled for a closed loop system...
Same with the 54...bottom tempered, holes drilled in sides for closed loop and overflow box...
mcknz...were they drilling the bottom of your tank...?