It only took ONE sheet of TP to clog your toilet??
That's hard to believe, even for a Jabsco...'cuz any marine toilet should be able to swallow at least 5-6 sheets of quick-dissolve TP. So while I definitely agree that replacing it is an excellent idea, I think you may have other problems...So just exactly what happened...in detail?The Raritan PH II is a manual toilet--rated the best manual toilet under $500 for several decades. For your boat, it would be an excellent choice IMO.Glad you're ordering the book. 'Cuz not only should it be useful to you, but sales of it and everything else from the online chandlery here pay the bills to keep this site up.