Fixing centres, meaning the distance between the two mounting holes in the pan, is the measurement that actually determines whether a seat will fit at all, and it varies enough between manufacturers that assuming a standard spacing is a common source of returned parts. The two most frequently seen spacings in the UK are around 140mm to 145mm and 160mm to 165mm centre to centre, and a seat bought for the wrong spacing simply will not sit over both holes.
A flush handle or lever that has stopped working properly is one of the more straightforward toilet faults to diagnose, but plumbers still lose time on it when the replacement lever does not match the flush valve fitting already in the cistern. Before reaching for a new part, it is worth ruling out a simple adjustment first.
Where brand-specific parts genuinely earn their keep is on cisterns built to a proprietary design that a universal part simply cannot replicate. Concealed cistern frames are the clearest example, since the tank dimensions, fill valve fitting and flush plate connection are often specified by the frame manufacturer and will not accept a generic part regardless of how adjustable it claims to be. Some premium close-coupled suites also use proprietary flush valve shapes or seal profiles that a standard universal valve will not seat against correctly, leading to a slow leak that only appears once the cistern is refilled and left running for a while.
Plumb2U stocks side levers, lid-mounted levers and the link arms and clips that connect them to flush valves and siphons, priced for trade buyers ordering more than one at a time. For a plumber working through several lever jobs a week, having a trade supplies merchant that lists the fitting details clearly rather than a single generic photo makes the difference between one van visit and two. Plumb2U Trade Counter, trading from Epsom but supplying trade accounts UK-wide, carries a lever range that covers most of what turns up on a round.
Locating the access plate is the first practical step, and it is not always where it looks like it should be. Some concealed frames put the service access behind the flush plate itself, which simply hinges or unclips forward once the buttons are removed, while others use a separate panel elsewhere on the same wall or in an adjoining space such as an airing cupboard. Getting this wrong before checking the frame manufacturer's layout wastes time working into a wall that did not need opening.
A dual-flush button looks simple from the top of the cistern lid, but underneath it is doing a more complicated job than a single-flush handle ever had to. Pressing one half of the button needs to trigger a short flush, while the other half needs to lift the flush valve fully for a complete cycle, and the mechanism that makes this happen is usually either a rigid spindle or a flexible cable running down to the flush valve itself.
A flush handle or lever that has stopped working properly is one of the more straightforward toilet faults to diagnose, but plumbers still lose time on it when the replacement lever does not match the flush valve fitting already in the cistern. Before reaching for a new part, it is worth ruling out a simple adjustment first.
Where brand-specific parts genuinely earn their keep is on cisterns built to a proprietary design that a universal part simply cannot replicate. Concealed cistern frames are the clearest example, since the tank dimensions, fill valve fitting and flush plate connection are often specified by the frame manufacturer and will not accept a generic part regardless of how adjustable it claims to be. Some premium close-coupled suites also use proprietary flush valve shapes or seal profiles that a standard universal valve will not seat against correctly, leading to a slow leak that only appears once the cistern is refilled and left running for a while.
Plumb2U stocks side levers, lid-mounted levers and the link arms and clips that connect them to flush valves and siphons, priced for trade buyers ordering more than one at a time. For a plumber working through several lever jobs a week, having a trade supplies merchant that lists the fitting details clearly rather than a single generic photo makes the difference between one van visit and two. Plumb2U Trade Counter, trading from Epsom but supplying trade accounts UK-wide, carries a lever range that covers most of what turns up on a round.
Locating the access plate is the first practical step, and it is not always where it looks like it should be. Some concealed frames put the service access behind the flush plate itself, which simply hinges or unclips forward once the buttons are removed, while others use a separate panel elsewhere on the same wall or in an adjoining space such as an airing cupboard. Getting this wrong before checking the frame manufacturer's layout wastes time working into a wall that did not need opening.
A dual-flush button looks simple from the top of the cistern lid, but underneath it is doing a more complicated job than a single-flush handle ever had to. Pressing one half of the button needs to trigger a short flush, while the other half needs to lift the flush valve fully for a complete cycle, and the mechanism that makes this happen is usually either a rigid spindle or a flexible cable running down to the flush valve itself.