Bathroom issues like continuous running, weak flushes

https://learn.multnomah.edu/eportfolios/918/home/why-you-need-a-plumber-to-clear-blocked-drains

Toilet problems like consistent running, weak flushes, or tank leakages frequently originate from worn inlet valves or flappers; in older Geelong homes, obsolete fittings may likewise conceal slow leaks that discolor floors and wall surfaces.