Is there any sure fire way of getting rid of that infamous black goo found in outdoor fuel tanks. I filled up my furnace fuel tank thinking that it would suffice my needs for a couple of years. Also looking to get a diesel generator, so that would also help with fuel consumption. I went to NAPA and bought a bottle of blue additive to clean the invasive goo monster. I'm in the process of putting together a pump/filter set-up in hopes that will help. I'm no Rockafeller, to buy steel spin on filters so I bought 2 large whole house water filters. Installed the filters on suction side of pump so it doesn't ruin the pump. Hoping this will help filter the fuel out. Any ideas ?