Leopardess said:I have heard of that also, with no ill effects so far as I know. The vinegar test may prove interesting. It also turns out that some companies, even if distributed from the same place, will have differences in content between bags, depending on where the sand was "mined" from. I didn't use the Quickcrete because the only sands they had were an ugly brown color and I was looking for a very light sand.
I've now become hooked on Pool Filter Sand. Like I said, it is SO clean. I could pour some into a cup, fill it with water, and drink the water!! The brand I bought was Robelle's. It was ~$6 for 50 lbs. Great stuff.
what is the name/brand of pool sand you use.