Sorry i didn't see this message. If you lay down a good soaking of water on the track say the night before. You don't want the clay moo shy but just wt enough like your going to run it. You can then put down your calcium. We use a fertilizer spreader from wal mart. You should put down two bags initially and then reduce quantity as needed. You can then lightly mist the track and the flakes will be gone the next morning. (always put it away wet). Now on race day a good watering in the afternoon. But stay away from the groove with the water. the calcium will keep the moisture in. as time goes on you will get less and less sand when you blow the track. my phone number is 9414625929. call me if you have questions