I have an old cast iron bath, the kind with feet, and old taps attached, one of which is dripping. I’m not sure how old it is but it was there when I bought the flat 20 years ago and I imagine it’s at least 40-60 years old as the flat doesn’t look like it’s had any work done since then, and the taps could be older. A plumber has told me I won’t be able to fix them as I won’t find a washer that will fit. Is that likely to be true? I’m loath to get rid of them and would happily try a diy alternative to a washer if there is something. Any suggestions or thoughts gratefully received. Thanks