Cooler Mash Tun 
Right side piece assembled
Right side piece assembled

The drain piece itself in front of the one of the end tubes.
The drain piece itself in front of the one of the end tubes.

Cross tubes cut and slotted
Cross tubes cut and slotted

The manifold assembled and slotted
The manifold assembled and slotted

The manifold assembled showing the bend to the drain.
The manifold assembled showing the bend to the drain.

Manifold inside the cooler
Manifold inside the cooler

Ball valve and nipple installed on the drain piece for a leak test on the 48 quart Ice Cube.
Ball valve and nipple installed on the drain piece for a leak test on the 48 quart Ice Cube.

The ball valve again
The ball valve again