It outlines several practical suggesttions and guidelines that can be used in the design of new trucks and plants as well as the troubleshooting of older installations When the tank reaches the weight you calculated, rotate the valves on both tanks clockwise to close them. Open the bleeder valve on the tank you filled to make sure it isn't too full. Open the bleeder valve on the tank you filled to make sure it isn't too full PROPANE EDUCATION & RESEARCH COUNCIL INDUSTRY FEEDBACK FORM Subject Not