Give byproduct its own lane early
Use the machine output rules as the baseline, then reserve a dedicated exit before Residue starts sharing tiles with the part of the line you need to keep clear.
Byproduct blueprint
Sandustry Residue Setup: Keep Waste Out Of The Production Path
Layout concept: route Residue sideways or downhill before it can cross Wet Sand input, Gold output or downstream machines.
Blueprint Summary
| Goal | Prevent byproduct from burying early production. |
| Difficulty | Beginner to expansion. |
| Requires | Readable Shaker or downstream machine output path. |
Build steps
Choose a dedicated exit side
Pick one side for Residue before you place transport around the Gold line.
Keep product and byproduct apart
Gold collection and Residue movement should not require the same tile space.
Check downstream machines
If Residue feeds another stage, that stage also needs clear output.
Failure checks
Residue covers fresh Wet Sand.
Residue fills the Gold drop area.
Downstream output backs into the Shaker line.
Manual clearing is needed every few minutes.
Core separation rule
Residue needs its own exit path. If byproduct shares the same space as Wet Sand input, Gold collection, or downstream machines, the line becomes hard to read and easy to bury.
What still depends on the layout
The best byproduct bus, spacing, and downstream chain still depend on terrain and how far you want to scale the line. The stable part is separation, not one universal footprint.
Featured Questions
How should you handle Residue in Sandustry?
The reliable answer is to give Residue its own side or downhill exit before it can cross Wet Sand input, Gold collection, or the next machine in line. Separation comes first.
Why does Residue keep breaking my factory?
Residue breaks lines when it shares space with product flow. Once byproduct covers the tiles you need for fresh input or output, the factory becomes harder to read and harder to recover.
Primary Sources
Source note: This recommendation is source-based, not an independently benchmarked build.
Official source