Final answer:
The least accurate way to clean a dirt-filled porch is by performing Short-rodding from the top due to its insufficient depth penetration of treatment. On the other hand, Foam void treatment and Long-rodding from the side methods ensure thorough cleanup and effective soil stabilization.
Step-by-step explanation:
The least accurate method for treating a dirt-filled porch would be to perform a Short-rodding from the top. This method is the least effective because it does not allow for the treatment to effectively penetrate the soil and reach the areas that require the most attention. Foam void treatment and Long-rodding from the side offer better depth penetration of treatment into the porch, ensuring a thorough cleanup and treatment which can help in proper soil stabilization and prevent further dirt accumulation.
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