Hi.
I have a large patio with with Indian sandstone on it. This was laid 2.5 years ago. However, the grouting compound between the patio tiles has not set yet and it is is very sandy/dusty. I want to seal the patio however since the grout is too soft and loose, it keeps coming in the way when I try to seal it.
I have already considered re grouting - I checked a lot of grouting compounds and their requirement is that I need to have at least 25-30mm of depth to start putting the grouting compound. Right now, the gaps are not that deep and therefore I cannot re grout.
I am attaching a picture of when I tried to pressure wash my patio and grout is wearing off.
Any suggestions of what I can do to fix this? I am looking for a solution to avoid having to re grout the whole patio.
Thanks for any suggestions in advance.
Kaly