Underwall Washing Machine Trap ALCADRAIN APS6 — stainless steel connections for two appliances, DN40/DN50

ALCADRAIN APS6 is an underwall washing machine trap designed for concealed installations where two appliances require a shared drainage connection. Made with stainless steel connection components, the unit accepts DN40 and DN50 drain pipes and provides reliable wastewater sealing and odor protection for installations behind walls or inside service niches. The compact body is intended for installation at the wall recess level and allows a neat, hidden connection of two washing machines or a washing machine and a secondary appliance.

Advantages

The stainless steel connections reduce corrosion risk and ensure long-term mechanical stability in the wet environment of drain systems. Compatibility with both DN40 and DN50 pipes provides installation flexibility and simplifies replacement or adaptation to existing plumbing. The trap design prevents sewer gases from entering the living space while maintaining effective drainage for two appliances. Its underwall form factor keeps the visible area clean and unobtrusive while allowing service access from the front or within a service niche.

Suitable for

• Shared drainage of two washing machines
• Connection of a washing machine and a secondary appliance (e.g., sink or tumble dryer with drain)
• Concealed installations behind a utility wall or inside a service niche
• Renovation projects where existing DN40 or DN50 drains are used

Key specifications

• Material of connections: stainless steel
• Compatible drain pipe sizes: DN40 and DN50
• Installation type: underwall / concealed
• Number of appliance connections: two
• Function: wastewater trap with odor sealing

How to use

Install the ALCADRAIN APS6 trap in the wall recess at a location that provides correct fall to the building drainage and convenient access for servicing. Connect each appliance waste hose or discharge pipe to the designated connection points and secure the stainless steel fittings according to local plumbing practice. Ensure the trap is fitted to DN40 or DN50 outlet piping using compatible adapters or couplings, and verify all joints for watertightness. After connection, run water through each appliance drain to confirm correct flow and that the seal prevents sewer odor ingress.

Usage recommendations

Use corrosion-resistant fittings and compatible sealing compounds for long-term reliability. When replacing an existing trap, confirm pipe diameter (DN40 or DN50) before installation. Inspect and clean the trap periodically to remove lint or debris from washing machine drains and maintain odor protection and flow capacity.