I got a couple of nice buckets free from Advance Auto Parts when I bought some micro fiber towls. I purchased a couple of grit guards to go in the bottom of the buckets. To my surprise the grit guards did not fit. They would only go about halfway to the bottom of the buckets. I trimmed the outside ring off to make them fit. The problem is that the grit guard is a tad smaller now than the bottom of the bucket. Will the grit guard still work as designed?? Thanks.