U have a Karcher power washer k2400hh *which I LOVE*. I recently had a problem with lack of high pressure - which I diagnosed and fixed by removing and lubricating the valve with Plumbers grease; I also ordered 2 replacements valves as a backup - and also - have additional O-Rings that apparently need replacement from time to time.

MY QUESTION: I have NEVER been able to get the soap suction tube to work with anything - any tip I used or position of the suction indicator - never has yielded results.

Any suggestion?

blitz02@verizon.net