Copper Hopper Overflow Fix is a small unofficial Fabric addon for the Copper Hopper mod.

It improves the behavior of stacked Copper Hoppers in vertical storage systems. Normally, when the chest connected to a lower Copper Hopper is full, items can get stuck inside the hopper buffer before the next available chest is filled. This addon changes that behavior so items can continue through the Copper Hopper stack and move to the next available hopper and chest instead.

This is especially useful for filtered storage systems where multiple chests are stacked vertically for the same item type, such as stone, cobblestone, dirt, wood, or other bulk storage items.

The mod only affects Copper Hoppers and is designed to keep normal vanilla hopper behavior unchanged.

Features:

Improves overflow behavior for stacked Copper Hoppers
Prevents items from getting stuck in full Copper Hopper buffers
Allows items to continue to the next available chest in vertical storage setups
Useful for filtered mass storage systems
Does not replace Copper Hopper
Does not change vanilla hopper behavior

Requirements:

Fabric Loader
Fabric API
Copper Hopper

Tested with:

Minecraft 1.21.11
Copper Hopper 0.20.4+1.21.11

This is an unofficial addon for Copper Hopper and is not affiliated with the original Copper Hopper author.

Overflow Hopper Fix