Could be overkill if it is biological staining. Klenztone has its issues. You could use an oxygenated chlorine cleaner or bio wash maybe. 

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On May 29, 2018, at 5:49 PM, Stephen Webb <stephen@newlifemarblerestoration.com> wrote:

Yes, Have you used this product before?


On 5/29/2018 4:03 PM, Mike Alston wrote:
Klenztone 3 for routine cleaning of a travertine pool deck? 

 
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