Tap cartridges work through ceramic disc technology that creates a watertight seal when the handle rotates to the closed position. In this Ascot bathroom, one tap in the traditional three-piece chrome set was bypassing that seal, allowing water to seep through even when fully shut. Our Master Plumbers Association technician diagnosed a worn cartridge that had degraded prematurely, a frustrating situation for any homeowner expecting longer service life. The faulty cartridge got replaced with a premium-grade component and the entire vanity installation was pressure-tested to make sure no other taps were approaching similar failure. Call Now if you're experiencing recurring leaks that shouldn't be happening so soon after previous work. S&J Plumbing's 30+ years combined experience means identifying why failures occur early and installing solutions built to last, backed by our personal satisfaction guarantee on every repair.