If you look at my pics below you can see the red 12 gallon gas tank sitting on the back deck. It was added on by the previous owner because he said that the original tank was getting water in it.
I want to fix whatever was causing the water to get into the tank so that I can use the original tank, and use the red tank as a secondary gas tank to help increase my range.
Any ideas? Suggestions?
If I can get both working I should have a range of close to 100 miles...probably won't go that far but who knows...

I use the red tank as my primary tank now, but want to use the original as well.

Red tank is 12 gallons and I think the original is about the same.

This is the original tank located just below the fuel/water seperator.
