I'm replacing a sand filter and I want to do it right. I can get pea pebbles at Home Depot or Lowes but they are larger than the size specified by Pentair. I can order the right size from Leslies or other pool stores in town but delivery is two weeks. No place locally seems to stock it. I'm going to an aquarium store tonight to see what they have. Help, my water is getting cloudy! Where have you all bought your pea gravel and what kind or size did you get?