Darrells contribution, the 10" Sono Tube is put in place, white sand is poured into the void between the sonotube and the sonotube containing the concrete. Worked well.... - Fraser Valley Astronomers
![Had a retaining wall done. They used this rock to backfill. Problem is that the sono tubes became loose because it hasn't fully settled and it's a little larger rock. I'd like Had a retaining wall done. They used this rock to backfill. Problem is that the sono tubes became loose because it hasn't fully settled and it's a little larger rock. I'd like](https://preview.redd.it/x5zx962z2nd71.jpg?width=640&crop=smart&auto=webp&s=bdf148cb5208f88bc7b4c3d7db27bb1ab083edfe)
Had a retaining wall done. They used this rock to backfill. Problem is that the sono tubes became loose because it hasn't fully settled and it's a little larger rock. I'd like
![Pouring concrete footers in sono tubes for a garden shed structure. 4x4 baseplates with 6-inch galvanize… | Timber frame plans, Concrete footings, Log cabin designs Pouring concrete footers in sono tubes for a garden shed structure. 4x4 baseplates with 6-inch galvanize… | Timber frame plans, Concrete footings, Log cabin designs](https://i.pinimg.com/originals/a6/48/68/a64868e89f51206e7376a8bfe056f154.jpg)
Pouring concrete footers in sono tubes for a garden shed structure. 4x4 baseplates with 6-inch galvanize… | Timber frame plans, Concrete footings, Log cabin designs
![Plumbatube a Concrete Pier 12" Alignment Tool-fits Most 12" Diameter Tubes : Amazon.co.uk: DIY & Tools Plumbatube a Concrete Pier 12" Alignment Tool-fits Most 12" Diameter Tubes : Amazon.co.uk: DIY & Tools](https://m.media-amazon.com/images/I/A1v0+Yo3urL._AC_SL1500_.jpg)