Softwashing does not remove weeds, a turbo lance connected to a pressure washer does that.Soft washing with quats will kill the moss but the drive will be still full of dead moss it won’t disappear, over the coming months it might rot away.Hypo will make it look cleaner but not remove weeds and mossIf the customer wants a clean weed free drive then it need pressure washing
Well Mr experts, I had a persistent problem with weeds. Did all the usual stuff, weedol, gas burner etc but since I’ve softwashed the slabs it’s gone, moss and everything. Back yard hasn’t looked this good in a long time.
This is 6months later after applying a biocide.