best type of vermiculite to use for vinyl bottom

[us7sail]

Thanks to both of you for your input. Dave I see your in raleigh. I am in chapel hill and looking for a vendor to supply me. Who did you buy your product through? I need a large amount for the 18x36 bottom. Waste, the product you recommend is it specialized for pools and who is the manufacture so I can look for it? Chris

[waste]

Chris, Whittimore is the big name on the bags, I'll grab one tomorrow and give you all the info from the bag.