1. With the water flow on from your water purification system, start by brushing the top of the glass. This is where dirt and contaminants tend to collect the most. Scrub back and forth along that top portion a few times, then leave and let the water drip down. Note: If you are going to clean the window sills, you need to do that now. Otherwise you'll drip from the sill back down on the glass.
2. Go back with your water fed pole brush and scrub the rest of the glass, leaving the top 2 to 3 inches alone. We recommend starting from the bottom and brushing upward, giving the water from the top of the glass time to drip down.
3. Rinse. The key to a good rinse is ensuring that the purified water is the last thing to touch the glass, not your brush. Your goal is to create a curtain of water that flows from the top down (See video below). Create the top of the water curtain, then follow it down with your water jets. Then rinse side to side, only rinsing about 2-foot wide strips at a time.
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