How Do I Wash My Driveway With Muriatic Acid?

Muriatic acid, also known as hydrochloric acid, can be used to clean driveways and other concrete surfaces. However, It's crucial to handle the acid safely and take necessary precautions. Here's how to wash your driveway with muriatic acid:

1. Safety Precautions:

- Muriatic acid is corrosive, so ensure you have appropriate safety gear. This includes gloves, eye protection, and clothing that covers your skin.

- Work in a well-ventilated area. Open doors, windows, or use a fan to ensure good air circulation.

2. Test a Small Area:

- Before applying the acid to the entire driveway, test it in a small, inconspicuous area. This helps you determine the ideal dilution ratio and ensures there are no adverse reactions to the concrete surface.

3. Prepare the Solution:

- The recommended ratio for cleaning driveways is typically 1 part muriatic acid to 4 parts water.

- Always add the acid to the water, not the other way around. This prevents splashing and potential accidents. Stir thoroughly to mix the solution.

4. Apply the Solution:

- Wet the driveway with water before applying the muriatic acid solution.

- Use a soft-bristled broom or brush to distribute the solution evenly.

- Avoid using stiff brushes or metal objects, as they can scratch the concrete surface.

5. Let the Solution Sit:

- Allow the solution to sit for several minutes as per the manufacturer's instructions. This gives the acid time to remove dirt and stains.

- However, avoid letting it sit for too long as it may damage the concrete and cause etching. Check the instructions for specific timeframes.

6. Rinse Thoroughly:

- After the recommended wait time, thoroughly rinse the entire driveway with clean water.

- Use a hose fitted with a high-pressure nozzle to ensure all traces of the acid are removed.

7. Neutralize the Surface (Optional):

- To further neutralize any remaining traces of acid, you can apply a baking soda solution to the concrete surface.

- Mix baking soda with water to create a paste and spread it over the driveway.

- Allow the paste to sit for a few minutes, then rinse it off thoroughly with water.

8. Safety Clean-up:

- Safely dispose of any leftover muriatic acid solution according to local regulations.

- Rinse any tools or containers used in the cleaning process with plenty of water.

Remember that muriatic acid can be dangerous, so it's essential to use caution and follow safety instructions carefully. If you have concerns or doubts about handling the acid, it's best to seek professional assistance from a concrete cleaning service.