heres a start of mine, 102 sheets of 2" 25psi pink board on the floor and double layer 4" down 24" on the inside a total of 133 sheets irrc
total of 12 loops setup in 4 different zones total of 3600 ft of pex in the floor, setup with no pex in 2-3' x 28' sections in the 10ft door bays for the...
5 of the loops are out in that field pictured are roughly 4-4.5 ft deep (huge piece of solid limestone that went under the garage to about 20-30ft out in the field) at the shallowest point at the front there they go out in the field to about 8-10ft deep, all the "coils" are at least 6 ft deep...
I did it my myself and i have a little under 2000 dollars in the 4200 ft (7-600ft loops horizontal) of pipe and the 7 circuit manifold and probably several hundred gallons of diesel fuel for the dozer and backhoe
Breaking ground on the geothermal when we ran into this
the loops were laid out then backfill of sawdust/dirt was brought in and they were raised up from the rock then backfilled with more sawdust/dirt
This was the aftermath of trying to save 12K+ that was quoted for the outside loops
Ive visited this site often and dreamed of someday owning a garage as large as some have built on here but until last year i was up around a larger area (Indianapolis) and the property prices up there would not have made it possible, i worked out of a 22x32x8 3 bay attached garage at the home we...
you might spray it down with a garden hose after you compact it and then compact it again, if you can get your hands on some limestone dust that might help to sprinkle that out, compact, wet it then compact again