Using a pressure washer makes cleaning the exterior of your home, traditionally a large undertaking, a one-day chore. I ...

A force can be a push or a pull. When a force is exerted on an object it can change the object's speed, direction of movement or shape. Pressure is a measure of how much force is acting upon an area.

Lower output pressure applies less force to the diaphragm and, in turn, causes the spring to open the orifice. This increases output pressure and restores the pressure balance across the diaphragm.

B&Q also has a range of powerful pressure washers, including the Erbauer Corded Pressure washer 3kW for £369. You can buy the Karcher K3 Horizontal Pressure Washer for £109.99 from Amazon here.