Apologies if this is a dumb question but I am replacing a few standard valves on my taps which have either seized up or dripping. I usually replace the entire valve rather than just washer as the old are usually limescaled or corroded, and the valves are not expensive, circa £3 at B&Q where I purchased a couple today. I noticed that there were very similar valves alongside on the shelf, but had (blue or red for h/c) ceramic washers rather than rubber and were only slightly more expensive. Could I simply replace my usual valves with the ceramic type as they look as they will fit. Or will I need to replace the taps?