Arqade is a question and answer site for passionate videogamers on all platforms. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I've found a dungeon and would like to set up a automatic mob-item collector and am having trouble coalescing the items easily. How do I create a funnel of water such that I can go from a river N blocks wide to a river 1 block wide, and the items in the river will flow into the one block?

share|improve this question
up vote 12 down vote accepted

The simplest way to accomplish this is to drop the items from your many-blocks-wide channel into a channel running perpendicular to it, which can be any size you want. You do this by making a "terrace" eight blocks wide (water spreads seven blocks from its source or "waterfall", for a total of eight blocks).

example of narrowing a river

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.