stoker-man wrote:I developed a long crack at the square frame of the door before last Winter. I bought some boiler sealer at home depot and it sealed it right up and doesn't leak yet. It would have been an impossible weld because it's also cracked on the inside at a butt joint. Your leak doesn't look like it's too easy to fix and you could have a larger area of corrosion to fix.
Its would be all but impossible to fix that leak without replacement of that Pipe (or a large portion of it at least), to weld that requires grinding to some clean "meat" so to speak and by the looks of it to me their is not going to be any clean "meat" to get to
Im not sure if these tubes are replaceable (like buying new burners for your BBQ grill?), but unless I could do those other ones (which also appear to have signs of rot/moisture weeping in the same area as the current problem pipe) I think you might be putting good money after bad (Its one thing to use furnace cement, welding, brazing on doors, grates, etc. but on parts that are pressurized with hydraulic water pressure inside them a quick/cheapo fix is just not wise).
Take out a dremel or even better a 4 inch grinder and start grinding away that area! (it has to be done anyways!!!), grind and keep grinding to clean steel (put some googles on as this is a tight area and sparks will be ricocheting on you), then after you do that take a wire wheel and start going at all those other pipes in the same area to see what your dealing with their as well (ping, ting, tap those areas looking for week/rotted spots). A welder can take slighter larger pipe dissect that pipe in half then 45 one end of the two dissected pieces and cover that entire area (but he needs to be able to solid weld these pieces around the entire perimeter and across the 45 joint). and those areas are forever going to be at risk for rot to continue around the outside of those welds even though it might get you some more seasons.
first thing to do is pull out your grinder and wire wheel to see what we got (it has to be done!!!)