Domestic Plumbing TRIZ Cases

See how draft-angled ends wedge between sink walls to enable flexible accessory positioning and

See how a rotatable glass rinser with meshing teeth prevents accidental high-pressure water eje

See how integrated apron and basin channels eliminate external sink accessories, preserving cou

See how a sealing element between extendable arm parts prevents moisture and dirt ingress while

See how an aircraft sink unit integrates water, heated air, and UV light below the countertop t

See how automatic mixing of water and concentrate in a segmented reservoir system reduces liqui

See how automated control switches foam discharge to water mode after a set time, preventing ex

See how an apron coupling wall with aligned slots and channels enables accessory attachment wit

See how repositioning the soap dispensing port away from the water outlet prevents rapid washaw

See how a sensor detects hot water flow to activate a pump only when wastewater is suitable for

See how an adapter with inclined contact elements secures sink accessories on sloped basin edge

See how projection-based support elements enable vertical accessory stacking on basin edges, re

See how movable nozzles, facial ID, customizable wash modes, UV sterilization, and feedback mec

See how adjustable mounting elements apply transverse forces to reduce basin shape deviations u

See how relocating the water cavity from the sleeve junction to the washing bracket eliminates

See how an inverted bracket mounting system secures apron-front sinks from below, improving fas

See how an apron extending laterally beyond the rim enables apron-front sink installation witho

See how adjustable bowl clamps and a standalone fluid tank enable non-invasive bidet installati

See how a recirculation pump and serpentine electrode paths resolve temperature inconsistency i

See how programmable adjusting elements and a control device enable one sanitary fitting to ada

See how a liquid outlet on the outer face of a furniture support part enables water-conducting

See how dynamic flow rate control prevents hot liquid splashing during tap dispensing by starti

See how an apron extending laterally beyond the rim hides cut edges and aligns with cabinet fac

See how a hollow shower curtain rod routes a flexible water hose internally to deliver water to

See how a vessel sink with extended lateral front wall portions overlaps cabinet edges to conce

See how a thicker ledge with beveled edges and integrated welding solves sink-countertop gaps a

See how a sliding sink cover adjusts length to fit different basins, isolating pathogens and od

See how a sliding sink cover isolates pathogens and odors while maintaining accessibility throu

See how a retractable faucet spray head uses magnetic coupling and multiple nozzle pathways to

See how a dual-circuit heat exchanger extracts excess heat from cold water to maintain hygiene

See how a sensor-controlled tap integrates water, soap, and air outlets with timed cycles to im

See how an integrated apron attachment channel enables accessory insertion and removal without

See how a mains-connected tap merges water dispensing with a beverage making cavity, eliminatin

See how a dual-loop heat exchanger withdraws heat from cold water to prevent Legionella growth

See how U-shaped modular frame elements with standardized dividers optimize sink cabinet instal

See how a water dispenser with fluorescent agent and UV light provides real-time visual feedbac

See how a removable panel assembly in an apron front sink enables aesthetic updates without rep

See how extended lateral portions on a vessel sink's front wall overlap the cabinet face to con

See how a rib-formed air gap at the overflow window edge overcomes surface tension to ensure co

See how a rib with distributed apertures at the overflow window edge enables efficient drainage

See how a water dispenser integrates fluorescent agent dispensing and UV light to provide real-

See how a vent ring inverts air flow beneath the sink deck to prevent dryer air and water from

See how sensor-driven nozzles detect hand size and position to automate soap and water dispensa

See how integrating compressor and battery into a single housing eliminates external hoses and

See how a mechanical interface with movable tongue and adjustment screw enables easy countertop

See how a vertical side-wall coupling device with inner and outer elements enables stable sink

See how draft-angled wedge ends secure sink accessories between opposing walls, enabling adjust

See how an annular gas outlet integrated into a faucet base enables hand drying at the sink, el

A detachable sink trap passes through the valve opening, enabling top-side removal and cleaning without affecting pop-up valve operation.

Small exchangeable multi-chamber capsules replace bulky soap and shampoo containers, cutting waste and improving ingredient flexibility in showers.

A suction-mounted adjustable holder lets the sink splashguard contour to the sink wall and change height for splash protection and access.

A curved one-piece guard channels faucet splashes back into the basin, improving drainage, sealing, and cleaning around the fixture.

A hollow spindle and base conceal the plunger while stacking toilet paper visibly, saving floor space and improving bathroom sanitation.

A widened apron overlaps cabinet edges and aligns with standard door heights, easing retrofit installation and reducing precise cabinet cuts.

A three-position valve mixes soap with shower water for spray bathing, then switches to water-only rinsing to improve accessibility.

Cabinet-wall tension supports secure an undermount sink without adhesives, reducing install time and avoiding damage to stone or metal.

A heat transfer plate lets faucet fittings recover wasted water temperature differences as electricity without diverting flow or major redesign.

Detachable connectors between the sensor housing and inner functional unit prevent cable damage during maintenance and support different sensor types.

A heat transfer plate lets mixer taps recover waste heat for power generation without diverting water flow or requiring major cartridge redesign.

An integrated siphon in the lower pivot bearing routes fluid through the pivot axis for easy maintenance and a flush-floor RV wet room.

A pedestal-mounted trailer sink creates wheelchair knee clearance and avoids wall blockage while staying releasably mounted for temporary use.

A removable pedestal sink mounted to a trailer creates ADA-compliant knee clearance and wheelchair access while staying connected to water lines.

A micro hydro generator powers timed LED and UV cues on a faucet attachment, helping users complete proper hand washing and sterilization.

A concealed valve body combines temperature, flow, and outlet switching into two controls, simplifying shower installation, use, and upkeep.

Protruding sealed ports and an integrated filter help concealed shower valves resist leakage, wear, and outlet blockage under pressure.

Wireless transmitter antennas hidden behind sanitary wall cladding supply power and signals without cables, preserving bathroom aesthetics.

A sheath-and-buckle magnet bushing lets pull-out faucets keep magnetic positioning while reducing bent tube wall thickness and enabling disassembly.

A single faucet valve core combines water mixing and outlet switching, using a limiting mechanism to prevent leakage during closure.

A nested dual-path wand hose keeps one fluid line pressurized, enabling one-hand faucet switching without pressure loss or discharge delay.

Coupled hot and cold shut-off valves open and close together to block crossflow, while a downstream mixing unit sets outlet temperature.

A narrow-groove faucet body secures an internal flexible hose for easier assembly, stronger connections, and reduced metal contamination.

An inner liner with shrinkage cracks isolates the spring in a pull-out faucet, cutting friction noise and resisting flush-out under high water pressure.

An inner liner with shrinkage cracks cuts spring-to-tube friction noise, while a buffer connector helps stop flush-out under high water pressure.

A single-piece coaxial siphon keeps a vertical liquid conduit flooded while reducing joints, air ingress, space use, and flow measurement error.

Integrated plug-in receptacles in the connection-side housing simplify hose assembly and improve pull-out security without separate receptacles.

A magnetic ball-joint control arm supports and repositions a faucet sprayhead for wider coverage, easier handling, and detachable use.

Relocating the valve cartridge below the deck uses belt, gear, or rack transmission to shrink faucet body size and support automated assembly.

A three-inlet mixer tap selectively blends recycled, cold, and hot water to maximize reuse while maintaining outlet temperature and comfort.

A spring or burst-disk relief valve opens at a set pressure to limit flow and prevent frozen building pipes and valves from bursting.

An oval header waterway and ribbed stream straightener even out faucet pressure and shape water into a controlled linear grid pattern.

A unitary rigid adapter replaces under-sink flex lines to speed mixing valve installation, prevent kinking, and free cabinet space.

An elastic flow regulator and dispersing cavity stabilize outlet flow under pressure changes while generating micro-bubbles in a bubbler.

Metal connecting ring and thread reinforce the faucet inlet joint, reducing assembly damage and improving connection stability.

Parallel linear actuation makes the outlet fitting slimmer while keeping valve access intuitive and fluid switching compact.

A welded thermoplastic hose-to-fitting joint avoids crimping stress and molding complexity while maintaining stable flow-resistant sanitary connections.

A pre-assembled plastic internal waterway is cast into the faucet body to remove machining and polishing while improving quality consistency.

A pivoting guide plate separates grey and black water to protect heat exchangers from fouling and improve greywater heat recovery.

A detachable connecting seat integrates inlet and outlet pipes to simplify faucet assembly, save housing space, and improve sealing.

A rotatable hollow-sphere diverter adds stream, shower, mist, spray, and jet modes to improve faucet cleaning and reduce splash-back.

Aeration windows use Bernoulli suction to pull seeped water back into the faucet flow, preventing drips while enabling low-torque manual removal.

An anti-rotation ball joint keeps a sanitary aerator from free spinning, enabling secure tightening, smooth switching, and simpler assembly.

A plastic faucet valve body with a metal inlet connector cuts weight and processing cost while preserving connection strength and assembly stability.

Directly mounting the valve core on a zinc alloy faucet removes auxiliary core seats, simplifying installation, sealing, and cost control.

Concentric annular walls and dual sealing members keep a rotatable faucet hose leak-resistant even if one seal fails.

Discrete arm angles and a movable inlet fitting let shower systems fit fixed plumbing points while expanding layout and replacement options.

Detachable extension pipes and threaded connections simplify tap assembly and disassembly while keeping water supply and outlet joints secure.

A pivoting guide plate and sieve split greywater from blackwater to protect heat exchangers while maintaining continuous flow.

Hot plate welding with inner and outer flash cavities cuts H-shaped water channel cost while keeping overflow out of the water path.

Combining manual valves with touchless activation, this faucet switches modes smoothly while reducing unnecessary electromechanical valve cycling.

A non-coplanar channel layout and mixing chamber reduce hot-cold flow collision, stabilizing outlet temperature and simplifying faucet molding.

A ring-and-button interface simplifies programmable water temperature, flow, and preset selection in sanitary fixtures.

Signal-strength thresholds, status alerts, and user confirmation help prevent unintended sanitary fixture operation while keeping wireless control usable.

A rotating anti-release joint locks nested water lines to prevent disconnection and tangling in high-pressure purifier faucets.

Electronic valves and a controller record user input sequences to coordinate water flow, temperature, and sensory outputs with monitoring.

A compact manifold and valve chamber let one rough-in body accept pressure balance or thermostatic valves while simplifying manufacture and repair.

A cuff, tether, and serrated lock restrain sink or shower handles to stop unintended turning and reduce overflow risk.

Pre-positioned interval connectors let installers cut and rejoin a hose to the exact length, removing loops, sags, and debris traps.

A jacketed silicone hose with three separate lumens routes multiple liquids through one compact faucet assembly, saving space and easing layout constraints.

A rotary spray head joint lets users redirect the water stream across the sink without pulling the head free or adding bulky faucet structure.

Injection-molded plastic joins the faucet body and outlet pipe in one piece, cutting weight, metal cost, and welding-heavy assembly.

Sensors, heaters, and an electronic valve keep faucet discharge temperature stable despite hot and cold water pressure changes.

A remote activator placed on a cabinet, wall, or near the floor opens an electromechanical valve without touching the faucet body.

An injection-molded plastic faucet body and outlet pipe remove welding, cut weight and cost, and use metal inserts where strength is needed.

Curved internal water channels remove lateral core-pulling holes, enabling integral faucet molding with better sealing and lower cost.

A temporary flange-to-body coupling lets a waste disposer lift and rotate as one unit, simplifying under-sink installation without continuous support.

A one-piece valve cylinder with integral conduit, supports, and self-leveling plate enables precise rough-in installation and fewer return visits.

A lug-and-protrusion mounting flange secures a waste disposer to a sink without snap ring removal, simplifying installation and rework.

Progressive magnetic joints let faucet conduit sections rotate into different shapes while balancing holding force, friction, and user effort.

Push buttons integrated into the escutcheon simplify tub-to-shower flow switching while preserving temperature control and retrofit fit.

A piston and compressible gas chamber inside the shower valve absorb pressure changes, reducing water hammer noise without bulky arrestors.

Feedback from flow and temperature sensors lets an electronic faucet deliver user-set water volume accurately while limiting splashing.

Distal edges brace against remote sink surfaces to stop faucet rotation even after mounting nuts loosen or wear the sink.

A spring and pressure-compensated distribution unit lets one handle dispense two separate liquids while returning the tap to a closed state.

A perpendicular front apron hides sink edges and adds support, enabling more stable, visually integrated composite sink installation.

A magnetic-mechanical arm mount secures a handheld showerhead while adding extendable height and angle adjustment for easier placement.

A self-supporting bathtub spout extension uses a wall plate bracket and water diverting head to create adjustable spray patterns.

Offset side bodies connect via bridges to a center body, resolving the conflict between widespread footprint and single-hole installation flexibility.

Integrating a screen into the hydrant vacuum breaker maintains constant pressure on the poppet valve, preventing leakage caused by turbulent flow.

A sink insert plate moves vertically and tilts via a dedicated lifting device to create adjustable work surfaces.

Drain assembly uses a sieve and filter element to separate debris from lavatory fluid while maintaining continuous flow through a bypass passage.

Segmenting the water system into a standardized backbone and detachable consumer units reduces re-certification time while maintaining layout flexibility.

Adjustable positioning member distributes force uniformly across varying wall depths, preventing conduit tilting and eliminating exposed screws.