Ideas for Lining a Pit?

[maddy]

I'd like to dig a pit about 4 feet deep (below frost line) and maybe 2x5 feet in area to use for cultivating worms year-round. Ideally it would be lined so that it won't collapse, and so that the edges could support a tight-fitting lid. The objective would be to keep small critters out and to keep the pit from becoming a boobie trap for deer. Any ideas for constructing a lining for a 4-foot-deep pit? (Pictures receive bonus points-- )

[DaleK]

Used well casing from a dug well. I have 5 or 6 if you want to shell out for shipping ;-)

[CIW]

Have you thought about using a piece of black ABS storm sewer pipe, buried vertically. It could be covered with the disc end of a wooden cable reel or a piece of plexi-glass.
If you did cover it with plexi it could be used to harden off seedlings in the spring.
I would leave it stand proud instead of cutting it off flush with the gound. Harder for something to fall into that way.

[edcopp]

An old 'chest type" freezer might be a solution here.

[rambler]

Concrete.

Dig the hole, make a wooden box 4-6 inches smaller all around, re enforce the box across the inside, center in hole, carefully shovel concrete this, that, other, across the box sides until full, day later take out the wood. Put some bolts in the top when wet, nuts sticking up, to secure the lid.

Enjoy the next 100 years.

Got 2 such pits on the place, for water pipe juntions and valves. You need a good snow cover, or straw over, or a real tight seal to keep cold air leaking in. Here they need to be 6-7 feet deep.

Paul

[maddy]

Great ideas--thank you!

[geo in mi]

Why not just a vermicomposter? http://vermicomposters.ning.com/

geo