I bought some pool filter sand and it says 20 grade on the front. What does it mean? Is this a good grade? I opened it and the sand looks pretty sharp as far as i can tell but im a noob when it comes to sand. And also some of it looks pretty fine is this still okay?
Questiion about sand
- Thread starter troutking
- Start date
grade refers to granule size, easy way to test is to drop some of the washed sand into a glass of water to see if it will sink quickly or not, I have PFS, but only what wal-mart sells and I don't think it had a grade