jaotguy
Veteran Member
bentonite = clumping kitty litter
If you do use a sonotube, why remove it?
For the sonotube to drop down into the hole, the hole has to be bigger than the sonotube. This would leave a gap around the footing.
We have to auger through 5' of compacted sand and into the virgin clay for the columns on a Pole Barn. Problem is the sand just keeps collapsing. Cleary Buildings is doing this.
Now trying to figure out how to do this. Someone from Cleary mentioned using a 20" sonotube around the auger, but they said it won't work. They said you can't push the tube down with the auger.
I think it would be worth giving it a try, but they don't want to. You guys got any ideas or and experience with using the tube around the auger?
Out of 35 columns, 11 are in deeper sand.
Thanks for any help you can give me.
Ed