Scott, it's still under warranty, so...
While jabsco isn't a toilet I'd ever recommend buying, I can't see spending money for something you can replace for free. Contact your dealer...if he's too far away to swap it out, you may have to do the work yourself, but it's not hard--just two hoses and four bolts. Or, since it has to be replaced anyway, see what kind of price difference he'd charge you to upgrade to a better head if you do the work to swap it out. If you can cut a good deal, my choice would be Raritan Cricket...has a diaphragm pump under the bowl instead of the usual piston/cylinder pump beside the bowl, so it fits in the same space as your "compact" Jabsco...and since diaphragms have no moving parts to wear, itdoesn't need periodic rebuilding. Check it out on the Raritan website at http://www.raritaneng.com