Started look through this thread and I see you are also having to do a repair to a big tank. I had to repair my 240 when I bought it broken. after you remove all the silicone, use acetone to remove any oils,ect off the glass where the new silicone bead is going to be layed for the best contact on the glass.
This is the thread i made of the step by step process I did of repairing my 240. take a look at it and hope I can give you a few pointers from it.
http://www.monsterfishkeepers.com/forums/showthread.php?t=306205
(240 repair)
Let me know if it helps
This is the thread i made of the step by step process I did of repairing my 240. take a look at it and hope I can give you a few pointers from it.
http://www.monsterfishkeepers.com/forums/showthread.php?t=306205
(240 repair)
Let me know if it helps