How​ do l remove red clay dirt or mud from the bricks on the foundation of a house? Thanks in advance

Residential
1

How do I remove red clay dirt or mud from the foundation of a house?

2

Oxalic acid

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I’ve never used it but I’ve heard good things about NMD 80 from EcoChem for the really stubborn stuff

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Thanks.

5

@anon1966941 what is you baseline mixture when mixing powder oxalic?

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I start off with about 8oz in a gallon mix and move up as needed.

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