Prerequisites for compliant installation
Before connecting your washing machine, there are several things to check:
- Evacuation type available :
- Specific downpipe
- Sink trap with machine inlet
- Dedicated wall drainage
- Technical specifications :
- Pipe diameter (minimum 32 mm)
- Maximum lift height (1m max)
- Distance from device (max. 1.5m recommended)
- Standards to be met :
- Minimum 1% slope
- Backflow protection
- Adequate circuit ventilation
Possible connection solutions
Option 1: Direct connection to a downspout
- Use of a certified connection sleeve
- Installation of a non-return valve
- Checking seal tightness
Option 2: Sink trap connection
- Choosing a double inlet siphon
- Compliance with minimum height (60 cm above ground)
- Installing a water trap
Option 3: Connection to wall drainage
- Check outlet diameter
- Installation of a rigid pipe (less than 1m long)
- Fixing without 90° elbow
Step-by-step installation procedure
- Material preparation :
- Suitable drain pipe (diameter 32/40 mm)
- Mounting clamps
- Sanitary sealant
- System assembly :
- Pipe positioning without retention zone
- Creation of a continuous slope (1 cm/m minimum)
- Fixing every 50 cm
- Validation tests :
- Vacuum flow test
- Controlling potential leaks
- Sound level check
Common mistakes to avoid
- Use of pipes that are too long (>1.5m)
- Unsuitable siphon connection
- Neglect of minimum height
- Non-return valve forgotten
- Insufficient or inverted slope
Preventive maintenance
To guarantee the longevity of your system:
- Annual pipe cleaning
- Checking seals
- Checking the check valve
- Fastener inspection
Calling in a professional
Our plumbing service guarantees :
- Precise diagnosis of your installation
- Choosing the optimum solution
- Standardized, secure installation
- Complete test before commissioning
Request an intervention
Get a personalized quote
If you have any questions about connecting your washing machine or would like to benefit from a professional installation, our qualified technicians are at your disposal. See also our plumbing services page for more information.
