I have recently had my ho****er cylinder emptied to change new valves and the resultant muck and water from the cylinder have left a dirty brownish tinged stain on the side of my house under the overflow. The wall has been finished with snocrete and white harling (roughcast) - can anybody advise me as how best to get rid of this mess - it is very noticeable and looks terrible. What's the best way to clean it off please??

Thanks very much :-)

"BigStrongGal" wrote in message
...

I have recently had my ho****er cylinder emptied to change new valves
and the resultant muck and water from the cylinder have left a dirty
brownish tinged stain on the side of my house under the overflow. The
wall has been finished with snocrete and white harling (roughcast) -
can anybody advise me as how best to get rid of this mess - it is very
noticeable and looks terrible. What's the best way to clean it off
please??

Thanks very much :-)


--
BigStrongGal

You could try brick acid - I'm not guaranteeing it would work, but it very
well might.
Be sure to sluice the area down in water afterwards if you do use acid.

Andy.