Gully Water Odor Trap V1.2 ⌀ 65 mm

Drain Water Odor Trap V1.2

The water odor trap is a 2-part, purely mechanical odor barrier/check valve system for wastewater pipes It reliably prevents sewer odors but remains functional if a **negative pressure in the sewer** forms or **water accumulates on the surface**

The model consists of:

• Ring (mounting frame)
• Flap (closes by **its own weight/gravity**)

Operating Principle

• Normal state: Flap lies closed and blocks odors from the sewer
• In case of negative pressure in the sewer: The flap opens to allow air to flow in
• In case of water on the surface: The flap opens to allow water to drain
  After opening, it closes again **horizontally** due to the additional weight of the flap

Installation

• Must be installed **horizontally** into a pipe with an **inner diameter of 65 mm**
• Insert ring, attach/insert flap (lightly deburr hinge areas if necessary), check mobility: **smooth opening/closing**, without jamming

Printing Instructions (important)

So that the flap closes securely again after opening, the **opposite side of the flap** (the “weight side”) must be printed with **99% infill**

Tip (Bambu Studio/

OrcaSlicer): Use a **modifier** (e.g., cube/block) to cover only this side and set **Infill 99%** there Alternatively, print the **entire flap** with very high infill (more material consumption, but simple)

Recommendations (optional, if you want to write them in the Print Settings):

• Material: **PETG/ASA** (humid environment), PLA only to a limited extent
• Clean edges on the hinge: lightly deburr/sand if necessary