I have a B32, 2002 vintage with teak decks. Use nothing other than an occasional wash with mild soapy water and gentle scrubbing action. Otherwise rinse down the decks with fresh water. To stop mildew and green algae taking hold in the winter rinse with a proprietary mildew cleaner as supplied for garden furniture. This approach keeps the deck clean but leaving the traditional silver patina. If you want to keep the ‘as new’ golden colour you’ll have to use teak cleaners and other stuff, which you might live to regret!!! Have fun, teak decks look great but are b
hard to look after!
Ian Culley/ ‘Another Fantasy’.