My compost bin is rather large 6'x12' and is full, mostly consists of leaves and grass clippings and four 5gal. buckets of horse manure. Only means of turning the entire pile is to do it by hand. Today I took (2) pieces of 2" PVC pipe approx. 4ft. long and drilled several holes in the PVC from top to bottom and placed both in the middle of the pile about 3ft apart. Will that help with the compost pile getting air without having to turn it? I can see steam coming out and can feel the heat by touching the top of the vent.

I have over the years used vented plastic pipes, drainage pipes, and large sticks, as stationary aeration devices in my large compost stockpiles.

I have also used sharp pointed objects like a old broom handle or old broked fork or rake handle, for poking aeration holes in large dense piles. It also keeps you from turning it so much.

I have also used a mattock over the years to slice troughs in tough thick compost piles for aeration.