installed a bathroom suite for a relative approx. 18 months ago with an expensive looking chrome mixer bath tap with combined shower hose. Was informed it cost about £150 with a 12 month guarantee and product literature stating "ceramic discs will last a lifetime". Whose lifetime - a butterfly when you expect a galapagos turtle? There is now an annoying constant trickle coming from the cold water side of it, and on dismantling it the mechanism is over closing - about 95" instead of 90" with a crack in the top disc. Informed by the plumbers merchants that the whole cartridge has to be replaced rather than just a small disc the size of a trebor mint. Surely a box of universal size discs can be supplied like you can get for o rings. Merchant also require make and model of mixer tap of which there is none on the mixer tap and the packaging has long been dispatched. The original supplier does not want to know as his 12 month guarantee has expired. Are these type crap and long live the rubber washer type, or is it just certain brands? The installation of bathroom suites is not very well paid work anyway so crap products make it an even bigger b*** ache. Anyone any good opinions on these designer looking marvels !