Removing sludge from button of fuel tank?

[WandereR]

From time to time should we be somehow cleaning the bottom of our fuel tanks in our rigs? If so how? I know there are fuel additives you can add to your fuel, but those can't remove solids that might have gotten in your tank. So how do you get that out?

 

[smritte]

When I had that problem, I drained the tank and sent it to the radiator shop for cleaning.
In the past, you would get sludge if the gas station tank was near empty. Now, the alcohol and additives in the fuel create issues if it sits for several months. Unless you fit one of those categories, your fuel filter is clogged or you see sludge/debris, I wouldn't worry.