So finally did it boys… (hope u all having a good weekend)…
First job outta the way… But with a few hiccups as expected…
What I do need advise on is why didn’t a few, or rather a lot of these black spots not come out?
It was a mates place that didn’t really care about it all coming out but I rekon in a few weeks ill go back and clear it up, if not for him but for my own practice…
So if you see in this pic below we have a fair bit of the black dirt still stuck in there…
Now he rekons its sandstone but I thought it was concrete… So we’re both not sure…
I did use about 2 litres of 12.5 SH mixed with about 5 litres of water… We let it sit for about 5 to 10 minutes…
Is that solution too weak? Or did we leave it for too little time…
Also keep in mind the dirt was so tough and thick on there…
I treated it with SH first then used the surface cleaner…
Should I have gone over with the surface cleaner then treat it with SH and then go over it again?
Lastly, I went over there tonight after it fully dried and he showed me a ■■■■ load of white stuff on the surface… We’re not sure if that’s from the pressure washing or is it something that was lying there in the past… Because we couldn’t really see anything whilst it was wet until today… He’ll send me pictures of this white stuff that’s patchy everywhere on the concrete…
I’d love all your guys feedback on the job… Would really really be appreciated…
OK so he sent me a picture of the white stains… Some help would be great as we’re both not sure what this is… It’s patchy everywhere
