JonetteP 0 Posted May 9, 2002 Have you guys seen alot of float valves swell do to old gasoline? It seems to be an inherent problem here. Share this post Link to post Share on other sites
HubbardRA 20 Posted May 10, 2002 It is probably alcohol mixed with the gasoline that causes this. In this area they add alcohol in winter months. Prolonged contact with alcohol will cause some types of rubber to swell. Rod H. Share this post Link to post Share on other sites