It looks like it should be straightforward, but I haven't been able to budge the plastic nut on the fitting and I'm afraid of just breaking it if I use a bigger tool. (Though I suppose as long as I break the plastic part and not the ceramic, I can take the broken bits to a hardware store and say, "Sell me an intact one of these"...)
(no subject)
I prefer www.fixatoilet.com for my plumbing information. Clear and simple.
Good luck!
(no subject)
Thanks for the pointer to that web site.