Keep the water and vinegar in proportion with each other. If you use 2 cups (470 ml) of vinegar, also use 2 cups (470 ml) of water. For most shower doors, a small spray bottle that you can pick up from a supermarket is perfect. Larger spray bottles are only necessary for very big cleaning jobs.
If there are any crevasses that your spray bottle can’t reach, use a toothbrush. Spray the toothbrush with the solution and scrub any areas you can’t reach. This is common where the door frame meets the glass. If there are also hard water stains on the front of the door, you can spray the vinegar here as well.
A soft-bristled brush will work as well. Paper towels will remove the cleaning solution, but may not take off remaining stains. A sponge or brush with bristles is better for breaking up mineral deposits. Don’t use a brush with hard bristles or a Brillo pad for this job. It will scratch the glass.
You could also go inside the shower, close the door, and use the shower nozzle to rinse the door. This will rinse the door well, but you risk getting wet in the process.
You can also wet a rag with vinegar and apply it to the stains this way.
A common mixture for baking soda paste is 3 parts baking soda to 1 part water. That means the bowl should have 3 times more baking soda than water. The mixture should be a paste, not a liquid. If it turns out too watery, adjust the mixture by adding more baking soda.
The baking soda may bubble a little when it touches the vinegar. Don’t worry, that’s normal and it isn’t harmful.
Don’t wipe off the baking soda paste before spraying the vinegar. Let the two react together.
You can also wipe down the door with a dry towel instead. This may leave behind some streaks and mineral deposits. If there are streaks leftover and you want to get rid of them, spray down the door with a 50/50 water to white vinegar solution. Then use a squeegee and wipe the door dry.
Hardware stores have several brands and products that you could choose from. Ask an employee for a suggestion if you don’t know where to start.
Don’t use cloth or fabric gloves. The cleaner will soak through and get on your skin. If you get any cleaner on your skin, rinse it off with clean, running water for 5 minutes.
Some cleaners don’t come in a spray bottle. If this is the case, wet a sponge with the cleaner and rub it on the door. Some products have different instructions. Always follow the manufacturer’s instructions printed on the product.
Don’t use a bristled brush for chemical cleaners. They could splash the chemicals into your eyes.
You can finish up with a squeegee to prevent any streaks forming on your door.