[AT] Hydraulic tank leak

[Carl Gogol]

I have a small leak at a welded seam (would you believe on the bottom?) of a 10 gallon rectangular hydraulic reservoir.  It is a small leak and seems to be a defect in the seam weld.  By small I mean maybe a shot glass worth over a week or so, Just enough to keep the floor looking junky.

Anyone got a simple idea of how to plug it without getting crazy and draining and cleaning and brazing or welding.  I noticed there was a bottle of hydraulic leak stop product at TSC (tractor supply) but do not have a real desire to put any of their magic into good Case IH Ankcella hytran oil – or just do it and not worry about it?  How about some of the magic plumbers tape? – not having any good ideas of how to wrap at an edge.  Any other ideas?  Bondo?  – drill a small screw with a rubber washer into the hole?
Carl 
Manlius, NY