Cleaning pavers

[Joker]

Just wondering how everyone cleans their stone pavers? Or more importantly, the grout between the pavers. We're finding it gets a little grubby and the pressure washer alone isn't doing the job. But I'm wary about using any chemicals for fear of ruining the stone. Any suggestions appreciated. 

[MartyH]

Have they been sealed?

[Joker]

No, they haven't been sealed. The paver suggested that it wasn't necessary, in fact that it was detrimental as the stone would have a permanent "wet-look". 

[MartyH]

If you're not having luck with a pressure sprayer I would look at sealing them. 

[Robessa]

Just wondering what the PSI rating is of your pressure cleaner that youre using.....? I find the more powerful works better on grout or other stone work, cement, general cleaning. I think my Gernie is around 1700psi? And it works fairly well. Otherwise, i dont know! ☺

[Joker]

I actually don't know the PSI of the pressure washer as I inherited it from my father. It's a GMC, which I think is an old Bunnings brand no longer around. I doubt it is very high but it is enough to cause damage on things if you're not careful! Eg I recent tried to clean some brickwork (not very smart) and it blasted some mortar out...

If anyone else has any suggestions for cleaning products I'd love to hear them.