Browse Forums Paving & Concreting 1 Sep 30, 2015 4:08 pm Hi all, my coloured concrete driveway and paths are about 5-6 yrs old and never been sealed. It's suppose to be charcoal but they are almost white in colour. We've had trucks, bobcats and you name it driving over and we have never high pressure cleaned. The most I have used is a stiff broom and sometimes a hose. The work around the house is complete so now I am looking to give the concrete a really good clean. I have a petrol powered washer but I need a wider spray or it will take me weeks to finish. Does anyone know of an attachment that I can use or hire to make the process easier? Also, can you recommend a cleaner - non acidic seeing I have plants near by. No, I even have sections of narrowness where the tiles won't slide up any further. When I manage some spare time, I might play around with the first DIY part of my… 7 5055 Yep, efflorescence as mentioned above. You could look to clean it with a "acid" based cleaner and then seal with a penetrating sealer. This may not stop it entirely but… 3 6049 2 3000 |