I would say replace otherwise you will be responsible for potential leak damages.  Being that the cracks run into the drain, your sure to have a slow leak overtime.

Thank You,
Eric Vogel
407-925-3796

> On Dec 29, 2016, at 19:49, Mark Winslow <midwesttileandstonemedic@gmail.com> wrote:
>
> Hello partners have a customer who sent this picture asking if there is a way to patch or best to replace
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