Bests & Worsts Reviews from Amazon

I have had a Karcher 2400 psi 5 hp gas power washer for 20 years and the machine is a gem. It starts easily and runs great. I have used it for countless hours over the years. HOWEVER... two months ago I purchased a Karcher 15-inch hard surface cleaning attachment to go with it. I had hoped the attachment would make the springtime job of cleaning my decks and driveway easier. But I found that the Karcher attachment does not work with my Karcher pressure washer. The literature says that the attachment will work with any pressure washer up to 3200 psi. Not true. Apparently, this Karcher attachment is not compatible with Karcher pressure washers that are older than 10 years. Nowhere in the Karcher literature for their surface cleaner is this fact presented. When I called Karcher customer service, I was told that there is no resolution to this problem and that I am simply out of luck.... and out $60 because I made the purchase two months ago. Karcher should be liable for not making clear a disclaimer that their Karcher attachment won't work with their Karcher pressure washer. Be careful.