Tap Bath Divertors
A bath shower mixer tap diverter valve replacement restores function to your taps when water leaks from both outlets simultaneously. We stock diverter pull knobs and internal bath tap diverter valves for wall-mounted and deck-mounted mixers. These components switch water flow between the spout and handset. We supply specific models not widely available through standard trade counter retailers.
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Bath Shower Mixer Tap Diverter Valve Replacement
Professional identification guidance for internal tap diverter mechanisms.
Finding the correct bath shower mixer tap diverter valve replacement is essential when your tap begins to leak from both the spout and shower head. These internal valves direct the flow of water and frequently fail due to limescale build-up or worn internal springs. Because diverters are rarely universal, you must identify your specific tap model or measure the existing brass body before ordering. A failing mechanism often makes the pull-up knob feel stiff or prevents it from resetting when you turn the water off. We stock a wide variety of model-specific diverter assemblies for kitchen and bath taps. These professional-grade spares allow you to repair your existing valve without the expense of a full tap replacement. We specialise in identifying hard-to-find components.
Diverter Valves, Pull Knobs, and Levers: Which Term Describes Your Part?
Common terminology used to find replacement internal tap mechanisms.
Questions About Tap Bath Divertors
Expert advice on identifying and fixing leaking or sticking bath tap diverters.
How do I know which diverter valve I need?
You must remove the existing part and measure the overall length and the diameter of the threads. Most diverters are not universal and are designed for specific tap bodies. Check for any manufacturer markings on the tap handle or body, as this helps narrow down the search. If the dimensions do not match exactly, the part will not seal correctly or fit within the tap cavity.
Why is my tap diverter sticking or not resetting?
Sticking is usually caused by mineral deposits like limescale building up on the internal pin or the spring mechanism. In automatic diverters, the water pressure holds the valve open, and a spring pulls it back when the flow stops. If the spring is corroded or the pin is coated in scale, it will not move freely. Cleaning with descaler sometimes works, but a replacement assembly is the more reliable fix.
Can I replace just the diverter pull knob?
Yes, if the internal mechanism is still working but the knob has snapped off or the chrome has pitted. Pull knobs usually unscrew from the threaded rod of the diverter. However, you must ensure the new knob has the correct internal thread size to match your existing rod. Most are M4 or M5 threads, but brands often use proprietary sizes to prevent cross-compatibility.
What is the difference between a manual and automatic diverter?
Automatic diverters use water pressure to stay engaged and a spring to reset to the "bath" position when you turn the tap off. Manual diverters stay in whichever position you leave them, usually requiring a 90-degree turn or a lift-and-lock action. If your diverter falls back down whilst the shower is running, the internal spring is likely too strong or your water pressure is too low for the valve to stay open.
How do I stop a leak from the diverter handle?
A leak around the pull-up knob usually indicates that the internal O-rings or the gland seal inside the diverter assembly has failed. Because these seals are under constant movement, they are a common wear point. You can sometimes replace just the O-rings, but as the brass body often wears over time, replacing the full diverter assembly provides a longer-lasting seal and prevents further leaks.
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