Limestone wash

I was wanted to know the best way to clean limestone? Can I use my regular house wash mixture of SH, surfactant, and water? Will the SH damage the limestone?

Iā€™m in the same situation here in Central Texas.
We have mucho limestone sided houses. My best luck, so far with the equipment I have, is DS a 2:1 (SH:H2O) with surfactant, on a pre-whetted surface, dwelling 10 minutes (keeping it wet), then rinsing it copiously.

Working on a budgeted 12 volt alternative to DS to get hotter mix.

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You both need to research how to clean limestone on this forum. It will take less time than making this post and waiting for the answer

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