I just noticed these cracks in the bowl of my toilet. It is not leaking water. Can I assume that these are just cosmetic cracks in the glazing? Or, should I worry about a catastrophic failure?
I installed this toilet myself about 20 years ago. It is on tile over a concrete slab; it is solidly mounted, there is zero rocking. It is an expensive pressure-assist toilet so I would rather not replace it.
Edit: Found a crack on the outside.
Edit 2: Finally got my replacement toilet (special order and they got the order wrong the first time). Pulled the old toilet, now I can see the underside.
There is a crack, but the location doesn't match the top bowl cracks. What is most interesting is that it looks like glazing was added during manufacturing. I am guessing that during inspection they noticed some tiny cracks, and rather than scrap the toilet, they tried to repair the cracks with glazing and re-fired the toilet.