If you’ve been washing your own car and have had issues with car soap that doesn’t lather well or water spots forming no matter the materials or brands you’ve used, that means you must’ve been washing car with hard water.
Don’t worry! Reducing the hardness of water and using soft water for washing cars is easy.
This article will guide you on how to soften hard water to wash car so you can efficiently give your car that spotless look.
Table of Contents
Methods to Soften Hard Water to Wash Car
What Happens to Use Hard Water to Wash the Car?
- Car soap or shampoo doesn’t lather easily
When you use hard water on car instead of soft water, it lessens the efficiency of car soap or shampoo.
Water is considered hard water when it reaches a certain amount of minerals per liter, mainly calcium and magnesium ions. How hard water is will differ per area and even per season.
When used with soap, the minerals in the water react by creating film-like soap scum (also called lime soap) instead of just soap foam. The harder the water, the less soap will lather.
Using hard water during a car wash means using more soap to make it foam.
- Hard water leaves water marks on cars
Hard water has many mineral deposits that leave traces on the car once the water evaporates. These are what create the very unsightly watermarks.
If you use hard water, it also means having to use more water to continually mist the car and avoid the formation of water spots while cleaning. There’s also a chance of doing a complete rewash if the hard water dries up quickly when washing under the sun.
How Can Water Softening Benefit Car Wash?
- No water spots on cars
Water softening is great for car washing as soft water helps avoid water spots when washing car.
Water softener filters exchange the calcium and magnesium ions in hard water with sodium ions, creating soft deionized (DI) water. The absence of these minerals means that once the water evaporates, there will be no mineral traces left to leave marks on your car.
- Less car soap or shampoo is needed for a wash
Soap scum will not form as an unwanted chemical reaction if there is an absence of hard minerals in the water. Car soap or shampoo can do its job more efficiently and lather easily.
Since foam forms easily, less car soap or shampoo is needed, and rinsing off the foam will be easier as no extra minerals need to be washed off.
Now that you know how to soften hard water to wash car and its benefits, your car washing experience can now be much more efficient.
Spending money on a hard water filter for washing cars might be an extra investment, but it sure is a good one. In the long run, it will save you time, energy, and money as now you’ll spend less soap, water, and effort when you wash your car.