Rosco Report post Posted June 8, 2010 Gray tank valve is sticky. What is a good lube to use and how much to take apart?? Share this post Link to post Share on other sites
garykd Report post Posted June 8, 2010 Hi Rosco, Go to http://www.shoprvparts.com/product.do?no=12691F and read about this product. Thetford makes the product I use. Go to http://www.thetford.com/Home/Products/Chem...29/Default.aspx and read about it. There may be other products available. Share this post Link to post Share on other sites