Same thing happened to me a few years ago, although I lost just the sprayer head and back plastic piece on the very end. That was the last time I used one of those sprayers. I got the piece out, but yours will be tougher because it's bigger. The way I got it out was, with an empty tank, strategic tapping on the bottom of the tank to coax it over to the tank outlet. Having the RV tilted a little could help. Once it was at the tank outlet I unfortunately don't remember how I got it the rest of the way out. It might have been by filling then dumping the tank, while tapping on the bottom to coax the piece over the ridge at the outlet.
