I'd stay clear of the well.
You want a big digger and excavate a deep hole in the ground. A 22 ton machine will take you down a good 5m from ground level.
We use Komatsu and Daewoo 360's, though we rarely excavate.
Concrete a base and then shutter walls around. Will need to be water tight.
Then slab the top with pre stressed bisons and more concrete poured over.
Leaving a hole for access. Then use well liners to take it to the top.
Then backfill over.
And a vent pipe to the well maybe. Macerator for the No 1's and 2's.
You want a big digger and excavate a deep hole in the ground. A 22 ton machine will take you down a good 5m from ground level.
We use Komatsu and Daewoo 360's, though we rarely excavate.
Concrete a base and then shutter walls around. Will need to be water tight.
Then slab the top with pre stressed bisons and more concrete poured over.
Leaving a hole for access. Then use well liners to take it to the top.
Then backfill over.
And a vent pipe to the well maybe. Macerator for the No 1's and 2's.