High-quality vitreous china residential toilets do not possess a definitive mechanical expiration date and can easily remain structurally functional for decades or even fifty years because porcelain does not degrade. Homeowners typically choose to replace a toilet only when remodeling for modern aesthetic preferences, upgrading to water-saving 1.28 GPF flush systems, or transitioning to comfortable chair-height seating. Routine maintenance like swapping internal flappers and fill valves keeps older toilets operating indefinitely.
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