What are the signs of: Toilet making a whistling or whining noise?

A high-pitched whistling or whining sound after flushing. The noise lasts 30 seconds to several minutes before stopping. The sound gets louder or higher-pitched over time. Jiggling the flush handle sometimes stops the noise temporarily. The toilet tank takes longer than usual to refill.

Who to call · Delft

Toilet making a whistling or whining noise — Delft, South Holland

Q: Who should I call for Toilet making a whistling or whining noise in Delft?

For this problem in Delft, call a Plumber.

A high-pitched whistling, whining, or foghorn-like sound from the toilet tank usually means the fill valve is deteriorating. As the valve's internal seal wears, water forces through a smaller opening, vibrating the mechanism and producing noise. The sound often occurs right after a flush and can last 30 seconds to several minutes. While not an emergency, a worn fill valve wastes water and the noise will worsen over time. A plumber can replace the fill valve in under an hour, restoring quiet operation and saving water.

Why this is common in Delft

Plumbers in Delft deal with hard-water limescale, ageing pipework in the older stock, and — on the wet Dutch subsoil — drainage, cellar pumps and damp. Gas and water work runs through recognised installers (InstallQ).