Karcher WV50 window vacuum servicing

How to improve the performance of your karcher window vacuum. After a while and a fair bit of use you may find the performance of your Karcher WV50 drops off and it fails to collect as much water as it used to. In this (rather gross) video I show you how to dismantle and clean the WV50 and restore it back to full power. Note that for dismantling the case of the Karcher, you will need a T9 torx style (star head) screwdriver.