One of my toilets has a poor flush, and it has been like that since I bought it . It takes at least 3 flushes before I clear the bowl. The toilet is attached to a vanity unit which matches its cistern box. I am almost inclined to replace it, but that would mean replacing the tiles as well, and the sink . A friend of mine suggested replacing the flush mechanism in order to improve water pressure, which would obviously be a good short term measure if feasible. Ultimately I want to replace the whole bathroom, but not for some time, so I'd like some further advice please, Thanks