The patch is a peice of 5052
bent over to reinforce the
seam.
There was a good conversation
on Matrronix about solutions.
I considered everything from
cutting an access hole int the
back of the tank, to using a
sloshing agent.
It's worth noting that ths spot
that leaked popped open as soon
as I removed the rivets.
The tank lid was clean.
All the proseal had stuck
to the other peice.
This was the first tank I
sealed and I think you should
always put proseal on both
peices. I don't think I did.