When I replaced my fuel/water separator, there were a lot of solid particles and even mosquitoes in the gas. The fuel lines from the tank goes to the fuel separator unit directly. I am planning to remove and replace the fuel hose after draining the tank. The tank nipple where the hose connects is about 1-1/2" above the tank floor so I might have to remove the sending unit and siphon the rest using manual pump.<br /><br />What do you use to clean the tank after gas has been removed? <br /><br />Any add-on or improvement I can do on the fuel line-such as adding petcock or filter?