So I guess ultimately what I should be asking is other than grain size what do I need to worry about with regards to harmful by-products in the sand? What kind of sand should I stay away from?
I remember reading that play sand contains trace amounts of pesticides, etc. Will sand from building supply stores have these issues? Do I need to make sure whatever I get is washed (i.e. washed plaster sand)? Would paver sand be harmful to the soil?
Muchos gracias
