plumbing - How damaging can a 3 meter (10 feet) long drain hose be for the washing machine pump and microorganism growth? - Home Improvement Stack Exchange
SPARES2GO Extension Drain Hose compatible with Bosch Washing Machine (1.5M, 19mm / 22mm) : Amazon.co.uk: Large Appliances
2-m Drain Hose Extension with Hose Clamp, Diameter 19/19-22 mm, Universal Waste Water Hose, -20° to +90° C for Dishwasher, Washing Machine : Amazon.co.uk: Everything Else