Yikes that looks bad.
A coup de grace may be needed here.
It could potentially be poulticed but not predictable.

Sent from my iPhone

> On Feb 10, 2020, at 11:09 AM, Tony Deluna <tndeluna@gmail.com> wrote:
>
> 
> <IMG_4405.jpeg>
>
>
> Hey pros, is there any saving this marble floor with yellowing in the tiles?
>
> Tony DeLuna
> 925-625-9625
> www.PatriotStoneRestoration.com
>
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