Tank Leak! - What Silicone to Use?

[sphelps]

A tank leak can cause significantly more damage than what the tank is worth. Tanks usually leak a reason other than one particular defective seam meaning if you repair one leak another could potentially form somewhere else shortly after. Repairs are also difficult and sometimes not possible, just running another bead over the existing one will likely offer a temporary fix.

So depending on the size, value and age of the tank, more often than not it's a better move to replace the tank completely.