Tonight sealed and riveted the 12 tank stiffeners and prepared the cap and drain flange surface are for sealing tomorrow.
On another subject, it has been difficult to scoop out the part "A" of the sealant using large tong depressors so I dried using something a bit stiffer. I have several T squares and I used the straight edge from one of them to try out. It not only worked well but the remaining goop cleans very easily. As you can see from picture#1 the fillets are coming out very nicely.