I am no good at DIY but wondered if there was an easy way of doing this job. My cold tap on my bath, only turns a couple of time, it's very stiff and the water doesn't come out very quickly, in fact it is very slowly . With the hot tap you can turn it much more easily. Is this a job for a plumber or would I be able to fix it without flooding the house I would appreciate any help in laymans language please.