Just moved into a 8 year old house and has I think either monocuche or k rend rendering, the wales have turned a light red colour and black on one,
I have tried using an industrial mobile pressure from work and this did get. Some off but It Leaves streaks even with some hydrochloric acid which the one I bought said it was 10% here
http://www.ebay.co.uk/itm/260838234921?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
This didn't anything g to help, bit gutted because the guy next doors house house come up like new he said he used hydrochloric acid
Any help guys?
I have tried using an industrial mobile pressure from work and this did get. Some off but It Leaves streaks even with some hydrochloric acid which the one I bought said it was 10% here
http://www.ebay.co.uk/itm/260838234921?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
This didn't anything g to help, bit gutted because the guy next doors house house come up like new he said he used hydrochloric acid
Any help guys?
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