Yes it can be fixed. IT is prob not worth the effort on your part. Replace it with plastic.
Let's say beneath a toilet there was an old lead trap with a small crack
> in the bottom, and there was ample work-access to the bottom from the
> floor below. In lieu of replacing the whole trap with a PVC or ABS
> alternative, is there a repair method for the existing lead? Is it
> possible to solder something like that from the bottom? If some sealant
> were to be used, what's the best thing?
>
> --
> *********************
> * Nehmo Sergheyev *
> *********************
>