I also agree that you don’t need the sonotube. For what you’re doing it will only weaken the lateral strength. If your local soil keeps collapsing into the hole a sonotube would help with that. Also, you can use a foot of sonotube to just make what you’re doing look neater.

Do you need to use Sonotubes?

I also agree that you don’t need the sonotube. For what you’re doing it will only weaken the lateral strength. If your local soil keeps collapsing into the hole a sonotube would help with that. Also, you can use a foot of sonotube to just make what you’re doing look neater.

What can I use instead of Sonotubes?

Sonotube Alternative – Ceme-Tube. An innovative product to replace the old-fashioned cardboard forming tube.