[Strata Cleaning]

Hi
Would you have any recommendation for an efficient method and product to use on slabs to remove heavy, deep and old urine stains? What's seen on photo is a fraction of the area affected.
Thank you in advance for any advise

[Mike Gwilliam]

I'm having a guess at bleach

[Kev Martin]

Try Miracle Heavy Duty Cleaner (Acid Substitute)

[Strata Cleaning]

Mike we tried hypo already with no joy.  In fact the stains became more apparent.  Kev i tried HD and unfortunately not shifting it - two trials with 20 min and then 1 hour dwell time.  Probably enzymatic solution would be a next shot...

[Kev Martin]

Mike we tried hypo already with no joy.  In fact the stains became more apparent.  Kev i tried HD and unfortunately not shifting it - two trials with 20 min and then 1 hour dwell time.  Probably enzymatic solution would be a next shot...

Did you definitely try the product I recommended?  Or did you try just a Heavy Duty Cleaner?

[Strata Cleaning]

Kev sorry for late reply. I tried heavy duty cleaner. I will pop in at the end of the month to get the Miracle one.

[Kev Martin]

They are totally different products.   The One you tried is Alkaline based the other is completely different.

[collins ReVive Stoneworks]

rip up and start again 

[dustee]

rip up and start again 

Orange Juice