Still no luck with the Polyquat at our local stores. Our Lowes does not carry it, only the amonia based - Walmart has NO chemicals (they said they aren't licensed to carry them) and Menards has the copper based. We don't have a pool store close by - 154 miles away and I'm sure they cost more anyways. I'll have to order - there are no state restrictions on shipping that as far as anyone knows?