Correct installation of the water drain for a washing machine is essential to ensure optimal operation and avoid the risk of leaks or backflow. Whether you’re installing a new machine or replacing an existing system, this guide explains the steps you need to take to install it safely.
What you need for water drainage
To install a water drain, you’ll need the following items:
- Flexible drain hose for washing machine
- Rigid PVC pipe for wall or floor drainage
- Fixing collar
- Suitable siphon
- Teflon tape
- Hacksaw or PVC pipe cutter
- PVC glue
Step 1: Prepare the installation
Check location
Make sure the washing machine is located close to an existing drainage point, or that you have access to a suitable drain. Also check that a water supply is available nearby.
Identify the drainage system
Two configurations are possible:
- Wall-mounted or recessed drain: Water is drained directly via a rigid pipe connected to a drain.
- Floor drain: Used for installations with no nearby wall, where water drains to a floor-level siphon.
Step 2: Install the vent pipe
Positioning the PVC pipe
Attach a 40 mm diameter PVC pipe to the point where the water will be drained off. This pipe must be long enough to reach the drainage point.
Installing a siphon
A siphon is essential to prevent odors from rising. Install it between the machine’s discharge pipe and the drain. Fix it securely using PVC glue and suitable gaskets.
Provide a drainage slope
To facilitate water flow, ensure that the pipe slopes at least 1 cm per metre towards the main drain.
Step 3: Connecting the washing machine hose
Connecting the drain pipe
Insert the washing machine hose into the PVC tube or siphon. Secure it with a clamp to prevent it from becoming dislodged during use.
Check pipe height
The point where the drain enters the PVC pipe should be between 60 and 100 cm high, as recommended by washing machine manufacturers. This avoids the risk of siphoning or backflow.
Step 4: Test the installation
Perform a drain test
Run your washing machine on a short cycle to check that the water is draining properly. Inspect fittings and seals for leaks.
Adjust if necessary
If water is not flowing properly or leaks are present, check the connections, slopes and positioning of the flexible hose.
Practical advice
- Use quality materials: Investing in good-quality pipes and fittings ensures greater durability.
- Avoid excessive bends: too many bends in the drainpipe can slow down the flow of water.
- Maintain the siphon regularly: Clean it to avoid blockages caused by residues.
Why call in a professional?
Installing a drain may seem straightforward, but mistakes in positioning or fittings can lead to long-term problems. A professional plumber can guarantee a compliant and durable installation.
Call on Leader Services for your installations
At Leader Services, we specialize in the installation of plumbing equipment, including drainage systems for washing machines. Our experts work throughout Belgium to ensure fast, efficient work. See our plumbing page for more information, or contact us directly using the form on this page.
Conclusion
Installing a drain for a washing machine is a technical operation that requires precision. By following these steps, you can guarantee optimal operation and avoid problems. For a worry-free installation, put your trust in Leader Services.
