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Amazon links
Karcher WV 1 Window Vac https://amzn.to/400RP9A
Sugru moldable glue https://amzn.to/3JTDl5u
Same fix should work for other models
WV 2
WV 5
My Karcher WV 1 shorts video
https://youtu.be/at7Qbwxm3ss
I fixed my bike with Sugru
https://youtu.be/at7Qbwxm3ss