Sewage Draining TRIZ Cases

A switchable toilet bypass valve routes waste either to the black tank or directly to sewer, cutting water use and discharge frequency in RVs.

An integral perforated top channel spreads water through the chamber to reduce discharge erosion, simplify installation, and improve load stability.

A domed slab and column profile redistributes soil loads in stormwater chambers to reduce cracking, buckling, and shear failure.

Reinforced side walls using embedded supports help modular drainage units resist lateral earth movement, improving stability and durability.

Overlapping flanges and built-in locking pins hold leaching chambers at selected angles during backfilling without hand labor or external fasteners.

Preconfigured basin parts and locking connections let users assemble custom basin sizes without cutting, damage, or long on-site modification.

This case shows how a capped tube admits ambient air to release vacuum suction while preserving aircraft waste removal.

Tapered columns and snap-bayonet connections simplify stormwater crate assembly.

Transverse members in the drainage cell deflect debris into an auxiliary channel, preventing sediment blockage and maintaining steady groundwater dispersal.

Segmented modules with geotextile filters control storm water flow while preventing sediment entry into the drainage system.

Interlocking hollow columns enable secure stacking for transport while ensuring symmetrical load distribution during underground installation.

Segmented tank structures with angled apertures increase disposal capacity without raising installation costs or labor intensity.

Trough-shaped platform enables wheeled vehicle access across modular drainage cells.

Angled gutter ramp evacuates odorous wastewater residues from railway connection stations to prevent interior damage.

Segmented vacuum toilet lid openings allow air flow into the bowl, preventing vortex formation and waste scattering that cause persistent shroud stains.

Coordinated pump activation generates controlled flow surges to flush waste sediments from pressure sewer mains.

Self-supporting chain extends conduit from reel to connect RV sewage outlet, eliminating operator contact with waste.

Segmented identical polymer plates join through congruent connectors to eliminate uneven wall thickness and reduce material usage in trench shafts.

Segmented lamellae block soil intrusion to maintain storage capacity, while angled nozzles clean debris without rupturing the underlying geotextile layer.

Hollow pillars within arch-shaped walls reduce plastic usage while maintaining strength, enabling efficient stacking of different sized chambers.

Acute angle drain conduit discharge opening induces negative fluid pressure to draw drainage water into flowing bodies.

A wastewater control module uses a membrane-sealed valve body and pneumatic actuation to manage liquid flow in aircraft vacuum disposal systems.

Modular panels use tapered tab-and-notch interlocks to eliminate fasteners, reducing assembly complexity while maintaining structural integrity.

Segmented conduit units with horizontal support surfaces remove porous backfill materials to recover 60-70% void space for increased storm water capacity.

Segmented arched plastic connecting pieces replace concrete to support heavy loads while providing personnel access for maintenance.

Angled asymmetric corrugations expand effluent treatment area while maintaining structural strength without support columns.

A corrugated end cap design integrates ribs and valley reinforcements to secure attachment.

Automated docking system replaces manual RV wastewater handling by using a motorized coil to extend the septic hose, reducing user exposure to unpleasant tasks.

A plastic trenching structural body uses nested hollow support elements for compact transport and stable assembly.

Self-locking tapered connections on drainage panels eliminate precise alignment requirements and separate clips, reducing assembly time.

A one-piece irrigation trench body uses a dedicated channel to collect sediments and enable pressure flushing.

Protrusions and fasteners stabilize the flared end ramp, preventing lateral movement while facilitating debris management.

Thermoforming corrugated PET sidewalls with integrated polypropylene louvers resolves injection molding difficulties while ensuring soil exclusion.