Thanks Kelly, Lynsey, May and ChinaBlue for your thoughts and comments.
These are all helpful and I shall pass this on to my kitten family. The lady has told me since that the lad started this soon after some large new settees were delivered to the house and after the catties (Storm and Sky) had been staying at a neighbour's house for a few days whilst the people were off on holiday so there have been rather a lot of big changes in the house too.
I think the trip to the vet is not strictly on the cards at the moment but will not rule out. I have suggested that she may consider it as a last possibility - she has not noticed him having any difficulty urinating, nor is there any discolouration but she is free to take him to vetty just to rule out urinary infection.
Suspect that visiting cattie is not helping so if she takes your suggestions Kelly and Lynsey, and discourages the visitor it may help.
I have also found from previous correspondence with others that Cat Attract is good for cats who wee in strange places. I have give the link to a website where this can be found. This litter has been proven by many others including breeders so it may be worth a shot.
Sorry, such a long post. Will let you know how she gets on.
Kind regards and thanks.
