You can really only work this out with experience. We also need to have the right amount of pressure on the glass. Try to maintain that angle for the next step. You want the angle in between those two - about 45 degrees. To work this out, say the angle when the handle is touching the glass is 0 degrees, and the angle when lifting it off the glass is 90 degrees (with the rubber still on the glass). ![]() When you place it on the glass, you want to have it at the correct angle. Hold the handle of the squeegee in your right hand with your thumb half way between the top and side. ![]() don't scrape backwards - this could drag the dirt, cement etc across the glass causing scratches. If you need to use the scrapper, make sure to only pass the blade in the forward direction, i.e. This is the time to scrape any stubborn marks off with the scrapper. Give it a good rub to make sure all the dirt is lifted. Rub the wet mop (that has detergent on it) onto the window. Put a few squirts of detergent into the water, or as I prefer, apply the detergent directly onto the wet mop. Hot water will make the water evaporate too quickly.
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