esshup...we have 300' coils, 6 of them now...originally 5, they added one additional coil this past spring when they came out as there weren't enough spacers and the geo system wasn't geo'ing. Each coil has 2 concrete blocks holding it down; they tell me this is by Carrier guidelines - 300' require two 4"x8"x16" blocks (19 lbs).

I have yet to have anyone answer me on why the compressor was frosted over; we were told to let it defrost; next day it ran fine for them only to discover the floating loops.

One wonders if the extreme weather we had part of the month of Dec/Jan with really cold low digits played in this loop problem...IMO i still think it's the loops--oh well.