Most paint swirls are caused by improper detailing techniques. For example, when you wash your vehicle, dirt and sand get trapped in the sponge or mitt. The first time you re-wet your mitt in the bucket, some of the abrasive particles will come off the mitt into the water. Subsequent dips in the bucket will re-contaminate your sponge. These contaminants will then rub against your paint and produce swirls. 
 
To get those particles out of your sponge or mitt, you need the Grit Guard Insert. The raised radial surface fits in the bottom of any 5 gallon bucket and extracts grit from your wash mitt or sponge when you drag it across the Grit Guard. The dirt settles at the bottom of the bucket so your wash water stays clean. The Grit Guard has a radial grid surface that scrapes dirt out of your mitt or sponge. Four quadrants at the base of the Grit Guard calm the wash water and hold the grid above the bottom of the bucket. Dirt falls to the bottom and stays there. You’ll be amazed at how much dirt accumulates in the bottom of your wash bucket!
 
The Grit Guard takes the grit out of your mitt for safer, swirl-free washing. This inexpensive item can save you countless hours and pounds spent removing swirls. Two Grit Guards are better than one! For optimum paint protection, stack two Grit Guards in one bucket. The stacked grids stand 5%u201D above the bottom of the bucket and stabilize more water. The grit settles to the bottom of the bucket and remains there because the grids prevent the water from being stirred up in the bottom. The addition of a second Grit Guard also provides more clearance between the clean water at the top and the dirty water at the bottom to lessen the likelihood that a stray grain of sand will find its way to the top.
 
Grit Guard products will give you a safer, more comfortable and convenient car wash!