The plugs where you operate a lever on the wash basin and a linkage between the lever and the plug, causes it to pop up...
I'm presently trying to fit one to a wash basin, where the wash basin is supported on a pedastal and the pedastal in in the way of rod which has a the small plastic ball on it, which fits through the side of the plug basket - this is the lower rod.
The entire thing uses two rods, the horizontal lower rod and a second vertical one which ends above the surface of the wash basin.
I could put a bend in the lower rod, allowing it to turn around the pedastal slightly, but then (due to the bend) operating the lever would cause it to simply rotate rather than eject the plug.
It is working fine at the momoment by reach down under the wash basin to operate the lower rod directly, but obviously I would like to try to engineer a proper solution.
I long ago replaced the separate H & C taps, with a mixer and fitted a chrome blank in the spare position.
My plan was to drill the blank to allow the operating rod to pass through that, but as said, the pedastal is in the way of the direct between them. Can you get a bowden type cable system for these, which would make this possible?
Or plan B, would it be sensible to drill a hole through the porcelain? There is a nice wide soap shelf along the rear edge of the wash basin and doing it that way would allow a very direct route for the operating rods.