Try some of the Nikwax products, Teckwash and the reproofer but if it is a conventional membrane that has started to fail then there is little that can be done.
If their kindle lending library allowed you to get more than one book a month, then that with the amazon prime video might be worth it. As it stands currently Netflix for me is the better deal.
Glad to be of service. I am down that way tomorrow, will see if I can gab you a shot assuming she is on her berth and I don't get washed out. Current owner daysails her a lot.
If it is the yacht I am thinking of then she is in Largs. She has been re-rigged to a gaff rig, I think when I saw her first she was Bermudan. If you ask the office nicely they might pass your details along to the current owner.
Troon might fit your requirements. They do a package deal for the winter months iirc. On the Glasgow to Ayr railway line so it cuts out the one train per hour dead end that is the Largs / Ardrossan line. About ten mins from Prestwick airport. Used to be a very nice friendly real ale pub and the...
OK, so why can I remember being anchored at Pladda with a submarine passing meat high speed then venting large quantities of "not steam" then proceeding very slowly back up the Clyde? OK, that was more than ten years ago.