Kiershar | Minecraft : Drowner Grinder @kiershar | Uploaded October 2011 | Updated October 2024, 1 hour ago.
Nothing amazing, just one of many videos about mob grinders.

This grinder uses water sources and glass blocks to push down mobs until they drown. Convenient for killing animals, but not chickens. Very reliable, but it is not adequate for too large amounts of mobs.

Related tutorials :
30x80 Practical Monster Trap : youtube.com/watch?v=jiTNZXyMNeA