We have spent the last week on an outside pontoon of the marina in isolation whilst the carpenter takes the old caulking out of the deck grooves and deepens them, making an awful mess in the process. It is a sticky black gluey substance that has melted in the heat. The new compound has UV protection in it - we hope this will solve the problem. We have also had to have a new primer pump for the watermaker and several other repairs to bits and pieces, the chandlery is doing good business!