Drippy tap fixed
it does this - starts dripping and the drip gets more frequent until it gets unreasonably annoying
I switch off the water to the cold tap and dismantle the tap itself to remove the casette thingy
scrub it and the hole it came out of and put it all back together
DOne it before so doesn;t take to long once I have taken all the carp out of the cupboard below, wrestled the shelf out from around all the pipes and drains - and then fiddled around underneath to turn the water off from the cold tap
so now the drip is about once a minute or so
no point in replacing anything because the whole kitchen is getting "updated" ina few months and that included a better tap
wife is muttering about taking the u-bend off and cleaning it all while I am at it
she has also bought a new toaster (it's been several weeks since we last bought one but she doesn;t like that one!!!) so I might go and get that first
othersie known as putting on the grotty horrible job by doing something else!