It Reaches Half-Pipe Alignment (Sewer Lower Service Channel) - Solution & Location

Connect every half-pipe so the exploding balls roll unimpeded to the fingers in the water area. Pull both railing switches first, then press the four buttons in this order: 1st, 4th, 1st, 3rd.

It Reaches Guide Team

Chief Archivist

2026-09-08 (updated 2026-09-08)
2 min read
Difficulty: High
Verification: Community reported
Last reviewed: 2026-09-08
Verification: Community reportedLast reviewed: 2026-09-08Based on the current Steam version of It Reaches.

Quick Answer

Connect every half-pipe so the exploding balls roll unimpeded to the fingers in the water area. Pull both railing switches first, then press the four buttons in this order: 1st, 4th, 1st, 3rd.

Exact Solution

Code / Solution
Switches (both) → buttons 1, 4, 1, 3

Where to Find It

Chapter
The Sewer
Location
The half-pipe area after the code door, where exploding balls must roll freely.

Step-by-Step

  1. Turn the catwalk valve handle to rearrange the rear half-pipe, then pull the switch to open the wall pipe cover.
  2. Upstairs: turn the first valve twice, push the middle button, turn the second valve twice.
  3. Break the boards with your knife, pull the switch to open the lower pipe cover.
  4. At the four-button panel: pull the left switch, then the right switch (opens both pipe covers).
  5. Press the buttons in sequence: 1st, 4th, 1st, 3rd. The half-pipes align across from the buttons.
  6. Let an exploding ball roll to the fingers blocking the water tunnel — they open. Enter the tunnel as they open.

What It Unlocks

The route onward through the fingers-guarded water tunnel.

Next Step

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