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michael1

  • Posts: 30
white marks on wall
« on: October 28, 2015, 09:45:17 am »
I have a customer that has white marks on the wall  they look like chalk marks  I hahave asked a builder he said its salt   I cant get them out whith tfr and 3000  psi and a dirtblaster     there was a bush  over the wall for years  could it be sapp  dripping over the wall  neat tfr doesn't even  cut into it        any   products     any advice   I will do it as a prodject  for future 

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Kev Martin

  • Posts: 6954
Re: white marks on wall
« Reply #1 on: October 28, 2015, 12:16:12 pm »
Its probably efflorescence
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JandS

  • Posts: 4237
Re: white marks on wall
« Reply #2 on: October 28, 2015, 01:35:58 pm »
What the builder said...it will dry off and go away eventually.
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Impossible done straight away, miracles can take a little longer.

Darranvps

Re: white marks on wall
« Reply #3 on: October 28, 2015, 05:31:30 pm »
Efflorescence as Kevin Martin Said - Get some efflorescence remover from him and only use steam at 150 degrees c so as to not saturate the wall which will only bring out more salt
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JandS

  • Posts: 4237
Re: white marks on wall
« Reply #4 on: October 28, 2015, 06:15:20 pm »
Just leave it it will go away eventually, usually happens on new build walls.
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Impossible done straight away, miracles can take a little longer.

michael1

  • Posts: 30
Re: white marks on wall
« Reply #5 on: October 28, 2015, 10:08:26 pm »
thanks for the answers  but I don't think its what I need 
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Smurf

  • Posts: 8538
Re: white marks on wall New
« Reply #6 on: October 29, 2015, 10:29:25 am »
This is an extreme example of what can happen when you  attempt to pressure wash walls down on a house.
I bet that was a bugger to rectify too.
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