After a bit of help if i can please guys,
Ive got a concrete drive that was black filty with grime, i pressured washed it the other day using a rotary head attachment on my pressure washer. It took some doing but i managed to get all the muck off, I had to walk real slow with the rotary head to get the grime off. The only problem is that now that its dried you can see the path that i took with the rotary head... looks like tram marks down my whole drive!!

Should I have pretreated it with a chemical to get the thick of it off first? Is there anything I can do to get rid of these marks, I tried going over it again with a turbo lance attachement but it hasnt made much difference. Any idea how this was caused?Concrete

Thanks for any help

If they still make make it but Jeyes used to do a really good patio cleaner, dilute as per instructions, stiff brush, no jet wash to remove the sand in blockwork..

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Verwood Handyman
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