The bulkhead came with the tank, and I am not using it. I have an overflow box instead. I have tried siliconing the leak but didn't work. Now the putty is dried and as hard as rock. Still leaking. I should have drained the water first then put the putty on the damn thing.
I think I am going to get more putty but drain it this time first, then put it on top of the existing putty. What do you think?