Cleaning surface of retaining wall

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Old 08-01-19, 09:01 AM
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Cleaning surface of retaining wall

I poured the retaining wall a few years ago but before installing the new screen door I want to set bricks along the top of the wall, should I clean the surface with a mild cleaning solution that would not affect the brick adhering to the top of the retaining wall.

Comments suggestions appreciated!!
 
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Old 08-01-19, 09:23 AM
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It doesn't look bad although it's never a bad idea to have it as clean as you can prior to laying the brick. Just make sure the cleaner is rinsed well.
 
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Old 08-01-19, 09:47 AM
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I thank you, considering using a very mild, perhaps 5% solution of muriatic acid, or TSP?
 
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Old 08-01-19, 09:54 AM
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You don't need muriatic acid since you are trying to remove things like dirt and mildew. A pressure washer would be my choice.
 
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Old 08-01-19, 10:03 AM
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Sounds a lot less labor-intensive than scrubbing, there are another 30 feet of retainer wall on the other side of the entrance, my pressure washer should have it prepped in proby less than a half-hour.

I thank you!
 
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