I'll take your $200 if you want me to come in and do what everyone else is telling you to do. It's either the water line or the filter.
Replacing the water line and the filter are both easy do it yourself fixes. So easy even a HispanicCausinPanic could do it.
Remember, when you put it out in your backyard to stand there for eternity, TIE IT CLOSED SO CHILDREN DON'T ACCIDENTALLY GET LOCKED IN IT!